$ git clone -n https://src.fedoraproject.org/rpms/R-gpx.git /var/lib/mock/f40-build-2136438-50815/root/chroot_tmpdir/scmroot/R-gpx
Cloning into '/var/lib/mock/f40-build-2136438-50815/root/chroot_tmpdir/scmroot/R-gpx'...
$ git fetch origin 68f6247fba0dd1482cb9f5381822f0163ecc285f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gpx
 * [new ref]         68f6247fba0dd1482cb9f5381822f0163ecc285f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68f6247 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild