Format string only working if it contains %;

[brandl-muc]

I'm on Ubuntu 18.04 and I installed clock override both from extensions.gnome.org and the Ubuntu software store.
With both sources I encounter the same issue. The format string is not interpreted correctly with some exceptions:

• Example %H.%M yields %H.%M
• Example 🔔 works
• Example %;cf (emjoi clock face) works
• Example %H %;vf (slow time) works
• Example %FT%T (iso date time) yields %FT%T
• Example %H:%M @%;@. (local and internet time) works
• Example It is %M minutes past hour %H fails
• %% yields %% instead of %
• %F (%a) %;cf %T works
• %F (%a) %;cf %T fails
• %F (%a) %; %T yields the default (same as w/o Clock Override)

So a format string only seems to work if it contains %;* where * denotes something valid as cf or vf. A format string is ignored if it contains any other combination of %;, even if added to a format string that works. All other strings seem to fail, i.e., not interpret the format string.

[da2x]

Duplicate of #13.

[brandl-muc]

Oh, sorry
Thanks