$ git clone -n https://src.fedoraproject.org/rpms/serdisplib.git /var/lib/mock/f40-build-1527432-23924/root/chroot_tmpdir/scmroot/serdisplib
Cloning into '/var/lib/mock/f40-build-1527432-23924/root/chroot_tmpdir/scmroot/serdisplib'...
$ git fetch origin b5baa821f159eaaadfd8286911811cee0ab62097:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/serdisplib
 * [new ref]         b5baa821f159eaaadfd8286911811cee0ab62097 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5baa82 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild