sourcetree diff broken if diff.noPrefix or diff.srcPrefix or diff.dstPrefix used

[bablex]

when git config contains any of diff.noPrefix, diff.srcPrefix or diff.dstPrefix (e.g. set it via "git config diff.noPrefix true" or "git config diff.srcPrefix some/path/") then diff in sourcetree is displaying incorrectly
It displays the file path below a 2nd time with a green icon and on top the first hunk is broken too

Currently sourcetree runs this command for the diff
>git -c diff.mnemonicprefix=false -c core.quotepath=false --no-optional-locks diff --unified=1 -M --no-color -- some/file.js

which seems that sourcetree already is aware of a similar issue caused by diff.mnemonicprefix

The fix is simple. Instead of just using `-c diff.mnemonicprefix=false` the command has to be changed to `-c diff.mnemonicprefix=false -c diff.noPrefix=false -c diff.srcPrefix="a/" -c diff.dstPrefix="b/"`
e.g.

>git -c diff.mnemonicprefix=false -c diff.noPrefix=false -c diff.srcPrefix="a/" -c diff.dstPrefix="b/" -c core.quotepath=false --no-optional-locks diff --unified=1 -M --no-color -- some/file.js

[bablex]

It's not only a view issue, but it's impossible to stage/unstage hunks in that case. The buttons are greyed out. This makes SourceTree unusable...