$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtgrpc.git /var/lib/mock/f45-build-34104-677/root/chroot_tmpdir/scmroot/qt6-qtgrpc
Cloning into '/var/lib/mock/f45-build-34104-677/root/chroot_tmpdir/scmroot/qt6-qtgrpc'...
$ git fetch origin ee426b9a2f7148fbbc5538436f85fa28db8f5880:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtgrpc
 * [new ref]         ee426b9a2f7148fbbc5538436f85fa28db8f5880 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ee426b9 6.11.2