Wikimedia Bugzilla is closed!

There seems to be something filling the job queue in a loop, 
we see in pretty quick succession:
 
 5723 
 5726 
    3  (sometimes)
    2 
 5723  
... etc.

If this is caused by possibly recursive behaviour in template 
calls, it was likely introduced - or stirred into the job 
queue - with changes made during the recent days, i.e. most 
likely on or after April, 4th., when I altered inside a system 
of interdependent templates which I mostly did not write or 
design, and at best partially understand. I tried to simplify 
them using parser functions now instead of highly complicated 
other contition-evaluating templates of the pre-parser-
function era.
I remember, I had inspected the job queue after such a change 
and saw it go down to zero, but frankly cannot recall when.