$ git clone -n https://src.fedoraproject.org/rpms/golang-github-xeipuuv-gojsonpointer.git /var/lib/mock/f45-build-12590-442/root/chroot_tmpdir/scmroot/golang-github-xeipuuv-gojsonpointer
Cloning into '/var/lib/mock/f45-build-12590-442/root/chroot_tmpdir/scmroot/golang-github-xeipuuv-gojsonpointer'...
$ git fetch origin 324e27f122ed2bf2f4a180bbcd7a8523e38f85f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-xeipuuv-gojsonpointer
 * [new ref]         324e27f122ed2bf2f4a180bbcd7a8523e38f85f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 324e27f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild