$ git clone -n https://src.fedoraproject.org/rpms/hexchat.git /var/lib/mock/f40-build-2048642-48993/root/chroot_tmpdir/scmroot/hexchat
Cloning into '/var/lib/mock/f40-build-2048642-48993/root/chroot_tmpdir/scmroot/hexchat'...
$ git fetch origin e92456c1542eb324491423a9bff939f75c4f24f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hexchat
 * [new ref]         e92456c1542eb324491423a9bff939f75c4f24f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e92456c Rebuild to fix plugin symbols. Fixes rhbz#2244684