I'm a sysop in the hewikisource. If this makes it easier, you can restore this namespace, and I will run a bot to delete all these pages. I prefer if you can delete them from the database itself instead, but it can be an option.
To prevent the next possible issue, I suggest to delete automatically every page while namespace is deleted (actually we thought that this is the status already, that's why we haven't deleted these pages before), or at least to ensure that all the pages in the namespace have been deleted.

There is T314733 too.

Also, bug T337467 caused by this method of check.

I faced this issue when tried to check if a section exists in other page, using the gadget of lst. This check is looking like this: {{#if:{{#section:page|abc}}|'''abc:''' {{#section:page|abc}}}}
It's helpful when you want that title or any text will be shown only if the section exists.
But when the section contains a ref, the software present its refs twice at the bottom.

Thank you, I got it. Probably it's our (old) community fault.
@neriah, what do you think about the option of indicator?
@Tacsipacsi can you extend, or give any source, about this option? Is that an extension?
Maybe it's for another issue, but in our main page this big sign is also exists. I think that it should be removed from the main page, of course it checked, only sysops can edit it...

Ok, thank you. I thought that one of these settings is relevant: (from mw:Extension:FlaggedRevs#User interface)

here

Ok, thank you

It should not be shown, because the text itself on the "if" condition doesn't shown.

@Aklapper, you are right that it sounds like a how-to question, but it's only sounds (maybe I should rephrase it), since the code "improvement" created problems that didn't exist (T336628 is another example). When you add a feature you have to check that it doesn't break anything else, and that's why I attract your attention to it.

Got it, thanks 🙏

@Xqt why to deprecate this option actually? I think the problem is in this strange generator. We have no other generator in pagegenerators that yield str() type.

Another bug in this issue:
The visual editor change the order of the tags. When I have the text <section begin='t' />'''hey everyone''', I want foo. it replace the order to '''<section begin='t' />hey everyone''', I want foo.
This cause horrible effect on the page that transclude this text! It actually replace the text that bold and the text which is not! In this example the text "hey everyone" will not be bold and ", I want foo" will be!
It's really disruptive the page's code!
The editor must be less invasive!
Tell me if I need to open another task for this issue.

It doesn't make sense to me to write an unreadable CSS code, but I can't force you.

We can't override this?

Is there any way just to delete the cache, so it could be restored by itself?

Thank you @Xqt, I thought that it supposed to pass as a parameter to super().__init__(**kwargs). What caused my wrong is a line that tell this (the last line of the first warning)... What's the meaning of this line?

Version:

Pywikibot: pywikibot/__init__.py (, -1 (unknown), 2022/07/23, 15:01:36, UNKNOWN)
Release version: 7.5.0
setuptools version: 58.2.0
mwparserfromhell version: 0.6.3
wikitextparser version: n/a
requests version: 2.26.0
Python: 3.9.7 (default, Oct  6 2021, 01:34:26)
[GCC 11.1.0]

Hey everyone,
Since we deleted this namespace we have small issue.
There are redirects from the transfer of pages between namespaces that already appear on the site. They are still on Special:DoubleRedirects.

Thank you!

My first point was solved, but the second didn't yet.
Anyway, thanks, because the first was really critical

Thank you @Legoktm

In T290679#7342884, @Dbrant wrote:

As you might have guessed, there is very little that we can do to prevent the system from destroying our app process when it needs to reclaim memory.
What version of Android is this using? What other apps do it better? In what way do they do it better?

According to what I wrote in T285609 I think that the problem is connected to the function "insertStripItem()" in:
https://gerrit.wikimedia.org/g/mediawiki/core/+/refs/heads/master/includes/parser/Parser.php#1340
Because:

MARKER_SUFFIX = "-QINU`\"'\x7f";

The same result happened when the prefix is valid.

{{#invoke:String|sub|{{Special:Prefixindex/good}}|1|25}}

Gives:

'"`UNIQ--item-1--QINU`"'

And with 26 we got the list of the pages.

Good idea to use string temps!
With:

{{#invoke:String|sub|{{Special:Prefixindex/hhdjdkddevsve}}|1|25}}

I got:

'"`UNIQ--item-1--QINU`"'

But when I try to get until 26 it looks empty

Yes, it's duplicate. Thanks

Just now I tried to transclude other empty draft, and it gives: "KU", what I expected

The names are the same.

Yes, my bad.
But my mistake caused because it doesn't exists in the documentation in MW, so thought it's absolutely deprecated.

I think you tried to do something but it's not working. so if name not in self.DATA_ATTRIBUTES we need to raise an exception or warning, and delete the last line of the func...

The existence in the documentation in line 37.
On line 529:

@deprecated_args(acceptall='always', addedCat='addcat')

There is no warning, and that's what strange here.
The command line is:

python pwb.py replace '(שבי"ל)' '([[מחבר:שבי"ל|שבי"ל]])' -addcat:'ספר המילים של שבי"ל'

Ok, it's only if I try to get invalid value:

But when I did something it's raised an exception because of that.