"MoD+Retreat" defeated w/o killing caster

[Sombre]

Foodstamp said:
The very vocal argument was that after everyone fled the field, the spell would continue forever no matter the circumstances. As far as being an admitted bug, you guys convinced the developers that you had tested the spell and that it did last forever after a mage+everyone retreated off the field. I can see where they would call that a bug, but it seems now the spell does not work like you all said.

From the buglist:

CBT Battlefield Enchantments Battlefield enchantments that affect the whole battlefield for the duration of the battle (e.g. Wrathful Skies, Darkness, Solar Brilliance etc) do not end when the mage who cast them leaves battlefield, even though they should.

This is an 'admitted' bug and applies to MoD. Fixing this bug avoids any need to do anything special to MoD.