$ git clone -n https://src.fedoraproject.org/rpms/yices.git /var/lib/mock/f41-build-1280088-23174/root/chroot_tmpdir/scmroot/yices
Cloning into '/var/lib/mock/f41-build-1280088-23174/root/chroot_tmpdir/scmroot/yices'...
$ git fetch origin e18eae7dccc1519897306cf7632c6e38357fa5da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yices
 * [new ref]         e18eae7dccc1519897306cf7632c6e38357fa5da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e18eae7 Version 2.6.5