More performant attempt at solving #300#487

Open

admwx7 wants to merge 3 commits intoPolymerElements:masterfrom admwx7:fix/data-propagation

+36-4

Commits on Sep 13, 2017

New: adding _propagateUpdates functionality for advanced template updates
Austin D Murdock
committed

Commits on Sep 14, 2017

Update: adding unit tests for the fix
Austin D Murdock
committed
Fix: removing stray .only in a test
Austin D Murdock
committed