$ git clone -n https://src.fedoraproject.org/rpms/golang-github-evanphx-json-patch.git /var/lib/mock/f40-build-781806-131860/root/chroot_tmpdir/scmroot/golang-github-evanphx-json-patch
Cloning into '/var/lib/mock/f40-build-781806-131860/root/chroot_tmpdir/scmroot/golang-github-evanphx-json-patch'...
$ git fetch origin 2a455af1f96d57098f1496b1ca9de8199534a4f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-evanphx-json-patch
 * [new ref]         2a455af1f96d57098f1496b1ca9de8199534a4f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a455af Switch license to SPDX