jverkoey/nimbus — pull request #189 by qnoid (2012-04-19 16:06:47+00:00)
Title: Unrecovered NSGenericException while parsing CSS file

...on of '*** Collection <__NSArrayM: 0x5db8f00> was mutated while being enumerated.'. Apparently there is a case where the '__kRuleSetOrder__' array under 'existingProperties' and '_mutatingRuleset' will be the same. Couldn't reproduce it with a test but have managed to identify a potential minimum .css that triggers. There are however other preconditions that must exist. Since the preconditions can't be pinpointed, can't be sure if they are part of a valid NimbusCSSParser state.