migrateMappings task adding incorrect imports for record classes

[ishland]

Using loom 0.8.8, I sometimes get some pointless extra imports that cause compilation failures.
All source files with record classes contains import record; and sometimes contains additional import <record class name>;

[modmuss50]

Mercury is the tool loom uses to handle source remapping, it might be worth opening an issue there as I doubt its a loom issue. (Please correct me if im wrong).

CadixDev/Mercury#40 seems possibly related.