$ git clone -n https://src.fedoraproject.org/rpms/golang-x-oauth2.git /var/lib/mock/f38-build-side-42-init-devel-706240-27160/root/chroot_tmpdir/scmroot/golang-x-oauth2
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-706240-27160/root/chroot_tmpdir/scmroot/golang-x-oauth2'...
$ git fetch origin cfa24d1456ed96a24d39eac59570aacc552a28c1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-oauth2
 * [new ref]         cfa24d1456ed96a24d39eac59570aacc552a28c1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfa24d1 Update to latest version (#2142125)