When running this command:
syncoid --sendoption=w --no-sync-snap rpool/Pictures sgate18TB01/Pictures

with some source / target pairs I get a lot of these lines:
Use of uninitialized value in numeric comparison (<=>) at /usr/sbin/syncoid line 1538.

Followed by a text telling me they do not have any overlapping or common snapshots. I apologize I forgot to copy that exact message. The workaround is to add --force-delete to the above command.

I don't have a problem, things work, but I thought I should report the above error.

I am on Debian 12 (latest) and version 2.2.0 of both sanoid and syncoid.