During upgrade, we attempt to convert any SCMTool primary key IDs in

conditions found in integration configurations. If we're dealing with

any partially-migrated conditions, we could end up crashing, since our

assumption that an entry is a primary key will fail.
We now safeguard against this when collecting IDs for the migration map

and then again when we update the values, allowing non-integer IDs to

remain as-is.

Unit tests passed.
Verified this fixed an issue I encountered in some partially-migrated state.