https://bugzilla.wikimedia.org/show_bug.cgi?id=55240
--- Comment #1 from Kunal Mehta (Legoktm) legoktm.wikipedia@gmail.com --- The problem is not with umlauts per se, I have tested (r9811) on botwiki and de.hardware-wiki.org and can use both:
python add_text.py -cat -text:someevenmoreimportantmessage -up -v with the category: Für_Prüfung
and
python add_text.py -cat:Für_Prüfung -text:someveryimportantmessage -up -v
without difficulty in my bot's userspace
But I can replicate the above termination using the same cat on that wiki.
I note that the category has 40 subcats and several hundred pages. I also note that the above cat also contains an esszet.
Reducing to priority 3 as this is the only reported instance and it would appear to have a relatively minor impact (replace.py should work in lieu of add_text.py)
Assigning to self to investigate further.
It would be useful if the reporter could give more information on examples of cats where this worked (eg. did it work with esszet, did it work on similar sized cats, etc.)