$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtserialport.git /var/lib/mock/f41-build-861349-169705/root/chroot_tmpdir/scmroot/qt6-qtserialport
Cloning into '/var/lib/mock/f41-build-861349-169705/root/chroot_tmpdir/scmroot/qt6-qtserialport'...
$ git fetch origin e6bcff04a7b86236745ff059034aef3c5e02cb7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtserialport
 * [new ref]         e6bcff04a7b86236745ff059034aef3c5e02cb7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e6bcff0 6.8.0