Hi @Spage. I got a similar bug which I reported in T122887, but in my case the failed updates lead to some discussion disappearing from the wiki. (I had less than 10, so it was easy to see, but maybe some threads are gone from your local wiki as well...?)

I think I tried maintenance/FlowUpdateWorkflowPageId.php --force but it didn't print the failure again either (but I'm note sure and I reverted to the last version for now).

In T115201#1718466, @Aklapper wrote:

Which version, on which MediaWiki version?

Do you mean rev_id? That seems to be a binary blob, how can I inspect it?

Ok, I tryed to look in the database. If I understand correctly, the posts are in the table flow_revision and the only field that looks like a timestamp there is flow_revision.rev_mod_timestamp but in my case, the value is always NULL.

I'm trying to look at this and I have trouble understanding where the problem comes from.
Here is the HTML node that shows the date of a post:

@Catrope they are dated January 1, 1970. This sounds suspiciously like the unix epoch but the date is not constant (i.e. time passes, a comment added today is dated January 2, 1970).

Hi @mooeypo,
I see this is now marked as resolved. That was quick :-)
How can I proceed to get the fix installed: I use MW 1.23, can I still install from git or should I backport the patch to my version?