$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt6-qtserialport.git /var/lib/mock/f39-build-1765034-41501/root/chroot_tmpdir/scmroot/mingw-qt6-qtserialport
Cloning into '/var/lib/mock/f39-build-1765034-41501/root/chroot_tmpdir/scmroot/mingw-qt6-qtserialport'...
$ git fetch origin 1a0b5e50891ea3efbbc2a61e7b432b8ad41b71f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt6-qtserialport
 * [new ref]         1a0b5e50891ea3efbbc2a61e7b432b8ad41b71f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1a0b5e5 Update to 6.6.0