Bug: Placed items (chests, etc) do not pull up the room when double-clicking the reference

[CuckooRules]

Simplest example to look at is the alder chest that spawns daily by Leo the Quick. Item#974 (in my dats at least). Spawns in Room: 9/863. If you double-click that line, which would normally pull up the room, it switches to the Rooms tab but provides an error "Room 0/0 was not found". I checked with other placed items and my suspicion is that it is an error surrounding references for which there is no % provided. It also happens for the adamantite chest (the sign version) that is near Ozrinom. The rooms exist and I have verified that they can be loaded manually in the same MME dat as well as that the items are indeed placed in the rooms indicated on the Sundry tab.

[syntax53]

Fixed on dev branch.

87f00f0