$ git clone -n https://src.fedoraproject.org/rpms/kgamma.git /var/lib/mock/f40-build-2227423-53021/root/chroot_tmpdir/scmroot/kgamma
Cloning into '/var/lib/mock/f40-build-2227423-53021/root/chroot_tmpdir/scmroot/kgamma'...
$ git fetch origin 462c803b452a506755f6e3c4322b179510b48afc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgamma
 * [new ref]         462c803b452a506755f6e3c4322b179510b48afc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 462c803 5.92.0