cubicweb-forge #7484462 infinite loop in SetModificationDateAfterAddComment hook [validation pending]

in the middle of a transaction the root of the comments tree may well be a Comment, so we never exit the loop.

priorityimportant
typebug
done in1.12.0
load0.500
load left0.000
closed by#f06789b8c376 [hooks] kill infinite loop (closes #7484462)
patch[hooks] kill infinite loop [applied]