$ git clone -n https://src.fedoraproject.org/rpms/remmina.git /var/lib/mock/f39-build-1625189-39141/root/chroot_tmpdir/scmroot/remmina
Cloning into '/var/lib/mock/f39-build-1625189-39141/root/chroot_tmpdir/scmroot/remmina'...
$ git fetch origin fa424c50d9e9f0bf41a8c840200f1dd21194e0bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/remmina
 * [new ref]         fa424c50d9e9f0bf41a8c840200f1dd21194e0bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa424c5 update to 1.4.32 rhbz#2239158