Date: Fri Apr 5 15:40:27 2019 +0200
tdf#117066 Saving ODT document with ~1500 bookmarks is slow, part 5
Before the above commit, we could have multiple child items with the
same name. Restore that behaviour, while keeping the fast lookup, by
using a std::unordered_map<OUString, std::vector<...
Also remove name from SotElement_Impl so there is no chance of the name
in the key of the map, and the name in the element getting out of sync.
Reviewed-by: Noel Grandin <email@example.com>