I can't reproduce it either, but I saw it happening in an specific computer in a university course. AS the computer was private, I couldn't retrieve the data, and I suggested not to save it, as it would be taken as invalid edition.

In T187699#3987209, @Theklan wrote:

I can't reproduce it either, but I saw it happening in an specific computer in a university course. AS the computer was private, I couldn't retrieve the data, and I suggested not to save it, as it would be taken as invalid edition.

Were they using the visual editor? There are some text highlighting issues, that can cause highlighting to not appear aligned with text, that happen when the user is using the 2017 wikitext editor and syntax highlighting extensions together, but not in the visual editor.

Yes, AFAIK. On the other hand, they were new users so they didn't have syntax highlighting enagled.

@Deskana I went through this issue with my username in different web browsers (Firefox and Chrome). Also I tried it (and double-checked it right now) with different accounts, and the issue remains there. A student in a university building (operating system Windows Microsoft) also drew my attention to this dysfunctional behaviour in the Visual Editor. The sample is wide enough to think it is not related to a specific place or account, as far as I see it.

@Inaki-LL That's useful information. That said, I must repeat my request from T187699#3987123 for specific reproduction steps, as I am still unable to reproduce the issue.

@Deskana Please take a look at my History in my Basque WP Sandbox (internal link did not work out...). You will see in the diffs numbered 1 to 8 different tests I have done. Usually the first edits are fine, but the editing becomes increasingly erratic.

Except for test 5, the link should fit a full word or phrase.

@Inaki-LL I'm really sorry, and I genuinely don't mean to be rude, but again I need to repeat my last two requests: please provide me with specific reproduction steps to show me how to recreate the issue. Showing me more diffs isn't going to help me reproduce or understand this problem. If you don't do that then I'm not going to be able to help you because I still don't understand what problem it is that you're reporting.

@Deskana Yes, I am also sorry. The thing is I do not know how to reproduce other than provide diffs, since I am only now coming to grips with Phabricator, but still do not know what you mean with reproduce or where I can do that... sorry also for my sort of primitive Phabricator knowledge.

As far as my understanding goes, the best way to reproduce the issue is to go the link provided above, write down a short text in the Sandbox, and keep adding links and references 4 or 5 times in the Visual Editor (same interface as in English), and see what happens.

I will do my best reading the technical (debug...) and posting guidelines, but that will take more time for me. Thank you

@Inaki-LL Mozilla have a nice guide on the best way to report bug. Basically, provide a step by step guide of exactly what you did to cause the bug to happen. You've kind of provided that in your last message, so I'll check those steps out when I get the chance.

Thanks for the link Deskana, will read it.

@Deskana I will reproduce the steps I take,

1. First, go to the article Ida_Kamińska in Basque
2. Open to edit by means of "Aldatu" (Visual Editor)
3. Select the word "Varsovia".
4. Click on the Menu "Lotura" (Ctrl+K)
5. Press blue botton, "Egina"

See the link shifted out of the selection

3. Put the cursor on the right hand side of the phrase "haien omenez."
4. Click on the menu "Aipatu" (Ctrl+Shift+K)

See the point of insertion has shifted to the left into the middle of the word "omenez", splitting it in two

I hope this helps fix the issue. Regards

I have noted a similar problem with the New Wikitext Editor but working in source. The text goes wild, and the cursor does not write in the actual place, making it sometimes virtually impossible to write something without saving and starting again.

@Inaki-LL Thanks for the steps! I can reproduce the problem now. In fact, it seems to be even worse, as when I tried to find "Varsovia" using the search function, it highlighted something completely different. However, I can't reproduce the problem on other random pages that I tried, such as 1957ko Kontxako Bandera, Millbank (Antrim konderria), and Lavaurette.

I figured out what the problem is. There's some <nowiki/> tags in the article. Sometimes these tags are inserted incorrectly by the visual editor, but quite frequently their insertion is correct to represent what the user actually wrote. To use an example from the article you linked, you have the word antzerkian but you only want antzerki to be linked. If you use the wikitext [[antzerki]]an then the whole word will be linked, which isn't what you wanted. If you use [[antzerki]]<nowiki/>an, then it does exactly what you want: antzerki is linked, and an is not. The visual editor uses this syntax when a user links only part of a word.

The above is all fine, but there is a bug right now where <nowiki/> tags can cause text to get mangled; this bug is T189118, and it seems to be what's causing the problem you're experiencing. Since this bug appears to be very closely related to that one, I'm going to merge them together.