[Rendering] Modulated shadows do not combine correctly on mobile

I just enabled modulated shadows on mobile and noticed that they are not combining correctly.

For instance, in the reference below, I have a character with an attached mesh and the two shadows do not combine correctly.

Expected result:
The player shadow and the bat shadow should be the same tint

Actual result:
The player shadow and the bat shadow are different values

Test platform:
Samsung Galaxy S6