(WIP) Fixing bug with scan parameter not being updated correctly through the globalFE
See the initial discussion in 02045596 (comment 2931760) , the picture is unchanged.
Two years and a half later, coming back to this :-) There is no possibility to loop over all (actual) FEs to set (full) registers during scans and the use of the ("broadcast") globalFE is not always adequate because it ignores some subregister values. All in all, that's a problem and some of our Strips scans fail because of this.
This MR contains a simple patch but note that it does not resolve the pb of "time-consumption" spent in looping over all (actual) FEs whereas the broadcast could sometimes be used to speed things up. I suggest to resume the discussion on this but there is currently in devel a clear bug that should be fixed asap and the proposed patch is a temporary solution.