$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcoreaddons.git /var/lib/mock/f40-build-2725609-73116/root/chroot_tmpdir/scmroot/kf6-kcoreaddons
Cloning into '/var/lib/mock/f40-build-2725609-73116/root/chroot_tmpdir/scmroot/kf6-kcoreaddons'...
$ git fetch origin bdfe13a096a151c61ce4b46b4e15c1d3f413d71c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcoreaddons
 * [new ref]         bdfe13a096a151c61ce4b46b4e15c1d3f413d71c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdfe13a 6.1.0