$ git clone -n https://src.fedoraproject.org/rpms/kmime.git /var/lib/mock/f40-build-2264203-54554/root/chroot_tmpdir/scmroot/kmime
Cloning into '/var/lib/mock/f40-build-2264203-54554/root/chroot_tmpdir/scmroot/kmime'...
$ git fetch origin 102b17badaac10151dff0171ee210c8f487cfa29:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmime
 * [new ref]         102b17badaac10151dff0171ee210c8f487cfa29 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 102b17b 24.01.90