Right, what I mean by edge case is that the app that created the backup was an earlier proof-of-concept that few people except myself and nostr:npub1vxd0dfst8ljvwva2egrpc53ve8ru78v8aaxfpravchkexmfmmu3sqnrs50 have used before, meaning the chance of other users experiencing this issue is low. It allowed both encryption methods because one of the signer extensions tested did not support NIP44, so our import function needs just to detect this. That's what this fix will cover.