I was apparently not testing with the second-revision 0.113 packages. Everything seems to be working, now that I've cleared metadata and gotten the correct packages.
Sugar starts, however there is a known (not to me until today) post-0.113 release bug that needs a small patch. Without this, Sugar completely fails to start. We (Sugar Labs) should/will incorporate this in to a new release (0.114), but until then, this makes the existing 0.113 package functional:
curl -q https://github.com/sugarlabs/sugar/commit/a83257bcf791e237afb55ed37f04d776f0fd927b.patch/ | tail -182 | patch -p2 -d /usr/lib/python2.7/site-packages/
Please note that the trailing / after .patch is mandatory, otherwise the patch will fail to fetch with curl.
Testers can apply this patch manually after install of an F30 SoaS build by first installing patch (dnf install patch), and then running the above piped command set.