$ git clone -n https://src.fedoraproject.org/rpms/qdbm.git /var/lib/mock/f40-build-2204670-51968/root/chroot_tmpdir/scmroot/qdbm
Cloning into '/var/lib/mock/f40-build-2204670-51968/root/chroot_tmpdir/scmroot/qdbm'...
$ git fetch origin 207a55afebc3ef0bc888bc1d4831378d435887f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qdbm
 * [new ref]         207a55afebc3ef0bc888bc1d4831378d435887f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 207a55a Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_3.3