Bring back the bugfix in direct inelastic occuring when one wants to get event workspace

[Alex Buts]

This bug (and number of following) has been fixed in develop version of Mantid but may be necessary in Release too.

[Alex Buts]

Re #10841 This should fix it

Changeset: d06d899a30612adb8563a366ffce3c3a2e1709f8

[Alex Buts]

Re #10841 Conflicts with develp

Merge branch 'bugfix/10841_BinningCanBeNone' into develop

Conflicts:

Code/Mantid/scripts/Inelastic/Direct/NonIDF_Properties.py

Changeset: ff44598050f38dbfb0465a6fb570413f6c573817

[Alex Buts]

To reproduce this bug one should open ISIS_LETReduction.py from system tests and instead of

      self.iliad_prop.energy_bins = ebinstring;

in Row 144 enter

      self.iliad_prop.energy_bins = None

This should get from reduction an event workspace, converted from energy transfer.

Current version of reduction fails on this assignment.

After the bugfix, the reduction still fails, but usable LET1_spe workspace can be retrieved from Mantid.

The change is needed to work with new normalization framework and normal return from reduction will be fixed in the new reduction.

[Martyn Gigg]

Merge remote-tracking branch 'origin/bugfix/10841_BinningCanBeNone'

Full changeset: ​56b4c6d1e9a4a857b956693e374c05e9553297cd

[Stuart Campbell]

This ticket has been transferred to github issue ​11683