The default save directory is only added to the search path when it is changed

[Martyn Gigg]

Currently, at start up, the default save directory is not appended to the datasearch.directories path.

This only happens when the value of the key changes. After this happens it is saved in the datasearch.directories and loaded in future but this is not true for a clean path.

To test:

• Open the Mantid.user.properties file and temporarily comment out the datasearch.directories variable
• Start MantidPlot
• File->Manage User Directories
• The default save path does not appear in the search list

[Martyn Gigg]

In [14956]:

Ensure that the default save directory is on the path at startup to fix system tests. Fixes #3874

[Martyn Gigg]

In [15028]:

Minor fix for the default save directory being appended to the data search path mutiple times when it does not contain a slash at the end. Refs #3874

[Karl Palmen]

When carrying out the suggested test, I found two directories, as though the commenting out had no effect. I verified that it did have effect, by uncommenting out and adding another directory, which then appeared in the list.

[Stuart Campbell]

This ticket has been transferred to github issue ​4721