cubicweb #10451635 source-sync doesn't force the synchronization [validation pending]

as advertized by its help message

prioritynormal
typebug
done in3.23.0
load left0.000
closed by#27b98f3cceae [datafeed] attempt to acquire synchronization lock even when force is given
patch[datafeed] attempt to acquire synchronization lock even when force is given [applied]