Workspace Selector does not process Replaced Workspaces

[Gesner Passos]

Open any workspace selector in mantif, for example:

• Interfaces->SANS->SANS ISIS (click on Time slicing) (to do this you have to wait to #8545)

This workspace selector should filter only EventWorkspaces. This is promised by using the WorkspaceTypes property to EventWorkspace.

• Execute the follow statement:

ws = LoadEventNexus('22048')
ws1 = ws.clone()
this_does_not_show = LoadNexus('22048')
ws = Rebin(ws,'10,200,1000',False)

At the end, ws which is now a histogram workspace is still listed inside the workspace selector.

The problem is that workspace selector does not subscribe to replacement events.

[Gesner Passos]

There is no way to show this error in the current state of mantid, because, it is not used like this in any other place, except StepScan.ui where they subscribe to the replace themselves to correct the wrong behaviour of WorkspaceSelector.

Hence, fixing this issue may interfere with StepScan. For this reason, I'm adding Russel to this ticket. He might want to test it.

[Gesner Passos]

Refs #8558 Handle Replacement event in Workspace Selector

Changeset: abd1e40238c1894142a3c52a024d67d69c1fd361

[Russell Taylor]

Merge remote branch 'origin/bugfix/8558_workspace_selector'

Full changeset: ​d7eb39aa4c587d8f9b11322f6cc25da5a6406934

[Russell Taylor]

This causes no problems to the StepScan GUI (where the replace event handler mainly does stuff beyond the WorkspaceSelector).

[Stuart Campbell]

This ticket has been transferred to github issue ​9402