$ git clone -n https://src.fedoraproject.org/rpms/kf5-kjsembed.git /var/lib/mock/f40-build-2086969-50150/root/chroot_tmpdir/scmroot/kf5-kjsembed
Cloning into '/var/lib/mock/f40-build-2086969-50150/root/chroot_tmpdir/scmroot/kf5-kjsembed'...
$ git fetch origin 7ba830e516dcf87a7593cd07c1f04c782add50ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kjsembed
 * [new ref]         7ba830e516dcf87a7593cd07c1f04c782add50ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ba830e 5.113.0