$ git clone -n https://src.fedoraproject.org/rpms/keysmith.git /var/lib/mock/f40-build-2241543-53664/root/chroot_tmpdir/scmroot/keysmith
Cloning into '/var/lib/mock/f40-build-2241543-53664/root/chroot_tmpdir/scmroot/keysmith'...
$ git fetch origin 738452f736a6092888f77f6be86a87900fccb847:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/keysmith
 * [new ref]         738452f736a6092888f77f6be86a87900fccb847 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 738452f 24.01.90