$ git clone -n https://src.fedoraproject.org/rpms/obs-signd.git /var/lib/mock/f40-build-755468-118205/root/chroot_tmpdir/scmroot/obs-signd
Cloning into '/var/lib/mock/f40-build-755468-118205/root/chroot_tmpdir/scmroot/obs-signd'...
$ git fetch origin 769d301acf8e2c61f4f8f92a5d9f9424aea38005:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/obs-signd
 * [new ref]         769d301acf8e2c61f4f8f92a5d9f9424aea38005 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 769d301 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild