$ git clone -n https://src.fedoraproject.org/rpms/weechat.git /var/lib/mock/f41-build-817041-150576/root/chroot_tmpdir/scmroot/weechat
Cloning into '/var/lib/mock/f41-build-817041-150576/root/chroot_tmpdir/scmroot/weechat'...
$ git fetch origin 83ecf2238ce8c487df638a9e68373f9e2dcdf3af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/weechat
 * [new ref]         83ecf2238ce8c487df638a9e68373f9e2dcdf3af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 83ecf22 Update to 4.3.5