Modern IDB: storage/indexeddb/modern/index-3.html fails When adding a record triggers an index unique constraint failure, we don't gracefully cleanup everything. (There were FIXMEs to this effect)
Created attachment 270232 [details] Patch v1
This relies on the patch in 153652. I'll mark as patch and for review after that lands.
Created attachment 270234 [details] Patch v1
http://trac.webkit.org/changeset/195838