$ git clone -n https://src.fedoraproject.org/rpms/ghc-wai-cors.git /var/lib/mock/f39-build-1712139-41228/root/chroot_tmpdir/scmroot/ghc-wai-cors
Cloning into '/var/lib/mock/f39-build-1712139-41228/root/chroot_tmpdir/scmroot/ghc-wai-cors'...
$ git fetch origin 0dd3006035b96bc009c33792b5a16ae18b11aa24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-wai-cors
 * [new ref]         0dd3006035b96bc009c33792b5a16ae18b11aa24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0dd3006 bump release