$ git clone -n https://src.fedoraproject.org/rpms/golang-github-sagikazarmark-crypt.git /var/lib/mock/f45-build-49212-882/root/chroot_tmpdir/scmroot/golang-github-sagikazarmark-crypt
Cloning into '/var/lib/mock/f45-build-49212-882/root/chroot_tmpdir/scmroot/golang-github-sagikazarmark-crypt'...
$ git fetch origin 18b97cfa67bad4f90a2d955358ef66a797396f38:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-sagikazarmark-crypt
 * [new ref]         18b97cfa67bad4f90a2d955358ef66a797396f38 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18b97cf Update to 0.27.0 upstream release