po4a.cfg: how to ask po4a not to update po files?

[Jibec]

Hi,

I have a big po4a.cfg with 857 files

[po4a_langs] fr 
[po4a_paths] translation_files/$master/$master.pot $lang:translation_files/$master/$lang.po
[type: text] src/13ft/DESCRIPTION.md $lang:translated/$lang/src/13ft/DESCRIPTION.md opt:"--keep 0" pot=13ft 
[type: text] src/20euros/DESCRIPTION.md $lang:translated/$lang/src/20euros/DESCRIPTION.md opt:"--keep 0" pot=20euros 
[type: text] src/243-game/DESCRIPTION.md $lang:translated/$lang/src/243-game/DESCRIPTION.md opt:"--keep 0" pot=243-game 
...

I see:

• po4a will generate empty po files for each lang in po4a_langs
• po4a will update every $lang.po files

How do I tell po4a not to update po files?

I would like Weblate to be the only tool to handle $lang.po updates to prevent conflicts and have smooth automatic updates by commit.
While I could only commit pot files, I would prefer to have po4a not to touch those files.
Hopefuly, this would make po4a faster, it takes 2 minutes and 30 seconds to handle 857 files, which is slow already for one single language, I'm worried the processing time may grow fast.

Can I do that?