$ git clone -n https://src.fedoraproject.org/rpms/gpx-viewer.git /var/lib/mock/f39-build-1469653-33856/root/chroot_tmpdir/scmroot/gpx-viewer
Cloning into '/var/lib/mock/f39-build-1469653-33856/root/chroot_tmpdir/scmroot/gpx-viewer'...
$ git fetch origin fa3ae641941ecd6d7450cf0894ac9cce7d902cdc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gpx-viewer
 * [new ref]         fa3ae641941ecd6d7450cf0894ac9cce7d902cdc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa3ae64 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild