Borderscore returns masked constant or int

[horsto]

In very rare instances, borderscore calculation returns int or np.ma.core.MaskedConstant instead of float. This messed with insertion into datajoint but otherwise doesn't have big consequences: I am reporting here just for completeness. I am helping myself by just calling np.array(shuffled_borderscores).astype(float) on the whole array before inserting into database.

[simon-ball]

Borderscore implementation is still experimental, and pretty much untested, so I would recommend avoiding it completelyfor now (same with Speedscore)