cubicweb-vcsfile #3034763 VersionContent's "repository content at this revision" action's URL is wrong [validation pending]

Its rql parameter contains the branch name without the needed surrounding quotes.

prioritynormal
typebug
done in1.13.3
load0.100
load left0.000
closed by#0ba582c3105b Fix the rql parameter in the URL of the VersionContent 'repository content at this revision' action.
patchFix the rql parameter in the URL of the VersionContent 'repository content at this revision' action. [applied]