$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qtserialport.git /var/lib/mock/f40-build-2119538-50734/root/chroot_tmpdir/scmroot/mingw-qt6-qtserialport
Cloning into '/var/lib/mock/f40-build-2119538-50734/root/chroot_tmpdir/scmroot/mingw-qt6-qtserialport'...
$ git fetch origin 7fd7fc773e06a9307afd5ea6112b837368714d61:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qtserialport
 * [new ref]         7fd7fc773e06a9307afd5ea6112b837368714d61 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7fd7fc7 Update to 6.6.1