$ git clone -n https://src.fedoraproject.org/rpms/qt6-qtserialport.git /var/lib/mock/f42-build-868375-176075/root/chroot_tmpdir/scmroot/qt6-qtserialport
Cloning into '/var/lib/mock/f42-build-868375-176075/root/chroot_tmpdir/scmroot/qt6-qtserialport'...
$ git fetch origin c9362a90e2e726e75575e59b71a539943b023749:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt6-qtserialport
 * [new ref]         c9362a90e2e726e75575e59b71a539943b023749 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9362a9 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild