$ git clone -n https://src.fedoraproject.org/rpms/khelpcenter.git /var/lib/mock/f42-build-864323-172280/root/chroot_tmpdir/scmroot/khelpcenter
Cloning into '/var/lib/mock/f42-build-864323-172280/root/chroot_tmpdir/scmroot/khelpcenter'...
$ git fetch origin fe10c2495ee000af4e8f64013386b035b62328fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/khelpcenter
 * [new ref]         fe10c2495ee000af4e8f64013386b035b62328fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fe10c24 24.12.0