$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtgrpc.git /var/lib/mock/f41-build-808436-145859/root/chroot_tmpdir/scmroot/qt6-qtgrpc
Cloning into '/var/lib/mock/f41-build-808436-145859/root/chroot_tmpdir/scmroot/qt6-qtgrpc'...
$ git fetch origin 068f0f23d78dbf56a0de3505d79ae0a6bea37871:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtgrpc
 * [new ref]         068f0f23d78dbf56a0de3505d79ae0a6bea37871 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 068f0f2 6.7.1