See for instance: http://forums.bethsoft.com/topic/1599816-wrye-bash-thread-108/#entry25104290

From #219

mods/inis installer attribute is not updated correctly when for instance - I install mod ZZZ.esp from an installer YYY high in the install order while ZZZ.esp is also installed by another installer XXX lower in the order when uninstalling YYY does not cede ownership of the mod back to XXX. May seem not a huge deal but actually points to the suboptimal way of detecting mod and ini changes - and this needs to be super optimal and correct so we only refresh mods and inis when needed (#205).