Monitor Workspaces Not Being Replaced When New "Added" Event Mode Data is Assigned

[PeterParker]

Richard has highlighted the following issue for the SANS ISIS interface:

• Reduce SANS2D run 23626, which will give us "23626_sans_nxs" and "23626_sans_nxs_monitors" workspaces.
• Add event mode runs 23626 and 23627 using the interface, giving us a "23626-add" file.
• Reduce this added-run file.
• Unbeknownst to users, the reduction is replacing "23626_sans_nxs" correctly, but not "23626_sans_nxs_monitors", which means that we're using incorrect monitor data.

A workaround he's being using in the meantime is to manually delete 23626_sans_nxs_monitors before he hit's "1D Reduce". We need to do this as part of the reduction so that this is not necessary.

[PeterParker]

This issue was originally trac ticket 9429