$ git clone -n https://src.fedoraproject.org/rpms/kcalc.git /var/lib/mock/f40-build-802849-144120/root/chroot_tmpdir/scmroot/kcalc
Cloning into '/var/lib/mock/f40-build-802849-144120/root/chroot_tmpdir/scmroot/kcalc'...
$ git fetch origin 41c16a0e1421c602c33f4151ccba767d360a0cde:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kcalc
 * [new ref]         41c16a0e1421c602c33f4151ccba767d360a0cde -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41c16a0 24.02.1