$ git clone -n https://src.fedoraproject.org/rpms/libmypaint.git /var/lib/mock/f40-build-2087498-50157/root/chroot_tmpdir/scmroot/libmypaint
Cloning into '/var/lib/mock/f40-build-2087498-50157/root/chroot_tmpdir/scmroot/libmypaint'...
$ git fetch origin 68127e3d9f7c4effe42a43d1e7576439cb1a3f17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmypaint
 * [new ref]         68127e3d9f7c4effe42a43d1e7576439cb1a3f17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 68127e3 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild