cubicweb-vcwiki #8001520 Normal users cannot modify pages [validation pending]

because it uses Reposition.make_revision (from vcsfile) which refreshes the repository, but the refresh_repository service is not selectable by non managers

prioritynormal
typebug
done in0.4.1
load0.500
load left0.000
closed by#c925cd094672 Fix crash when normal users edit a vcwiki page
patchFix crash when normal users edit a vcwiki page [applied]