This sort of sidesteps the issue, IMO, of how hard it is to isolate a problem. Yeah sometimes things collide, but pretty often in my experience there has been o

This sort of sidesteps the issue, IMO, of how hard it is to isolate a problem. Yeah sometimes things collide, but pretty often in my experience there has been one change that needs reverting or patching, not six changes that interleaved. Or rather, interleaving them at best increases the difficulty of the blame game.