exportAllConversations()'s orphan-cleanup treated "zero local
conversations" as "every synced conversation was deleted," so a
just-cloned repo on a new machine could get emptied and pushed before
the post-clone import ever ran. orphanedExportFilenames() now returns
no orphans when the local ID set is empty, and cloneRepository()
imports immediately after cloning to close the window entirely.
rune
ae3de3d927