$ git clone -n https://src.fedoraproject.org/rpms/kf6-kfilemetadata.git /var/lib/mock/f40-build-2215569-52437/root/chroot_tmpdir/scmroot/kf6-kfilemetadata
Cloning into '/var/lib/mock/f40-build-2215569-52437/root/chroot_tmpdir/scmroot/kf6-kfilemetadata'...
$ git fetch origin d17200c2e54e3dcc330152e348b10ef454892e8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kfilemetadata
 * [new ref]         d17200c2e54e3dcc330152e348b10ef454892e8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d17200c add QMobipocket6