Dec to hex convertion bug

[wyrzykow]

Gaia22ahy

Declination
-54.4
-54:23:60.000

[wyrzykow]

error in astropy actually. The result of conversion is -54:23:59.99999 and when rounded up for display, we get -54:23:60, instead of -54:24:00. Patch added in BHTOM2, but BHTOM1 remains affected.