cubicweb-trackervcs #4784550 port to vcsfile 2 [validation pending]

prioritynormal
typetask
done in1.2.0
load0.500
load left0.000
closed by#715b5ac8b10a port to vcreview 2 (closes #4784550)
patchport to vcreview 2 (closes #4784550) [applied]