$ git clone -n https://src.fedoraproject.org/rpms/mingw-qt5-qtserialport.git /var/lib/mock/f39-build-1830375-41882/root/chroot_tmpdir/scmroot/mingw-qt5-qtserialport
Cloning into '/var/lib/mock/f39-build-1830375-41882/root/chroot_tmpdir/scmroot/mingw-qt5-qtserialport'...
$ git fetch origin 8db3ac2a3ed1e78001b9c284285159ae385eb22d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-qt5-qtserialport
 * [new ref]         8db3ac2a3ed1e78001b9c284285159ae385eb22d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8db3ac2 Update to 5.15.11