$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtserialport.git /var/lib/mock/f45-build-34142-678/root/chroot_tmpdir/scmroot/qt6-qtserialport
Cloning into '/var/lib/mock/f45-build-34142-678/root/chroot_tmpdir/scmroot/qt6-qtserialport'...
$ git fetch origin e3d3a2be324c6acc483ad2a711e4f7b1990faa73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtserialport
 * [new ref]         e3d3a2be324c6acc483ad2a711e4f7b1990faa73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3d3a2b 6.11.2