Krzysztof Krztoń

I moved [my feedback](https://github.com/ckeditor/ckeditor-sdk/pull/180#issuecomment-222621527) to the proper PR (#180) concerning this issue.

Thanks for pointing that out, I was wondering about issues connected to OT. What is the proper way to test OT for such cases, do we already have some integration/manual...

Ok, first I will write some unit/integration test (using operations as @scofalik suggested) to check how it works with composition. And then as @pjasiun suggested I will do some "real"...

@Reinmar, yes it blocks the entire rendering. Blocking only the container (or part of it) in which the composition takes place may help to solve some cases with OT, however...

Looks tough indeed. I start checking for failing 1 user scenarios while using composition. Checked MacOS accent balloon and Spanish accent composition for now. ### MacOS accent scenarios 1. Long...

Checked some scenarios with **Hiragana** too. Only a few but I think it is enough to give some general picture. The scenarios contains just a key sequences as it is...

@Reinmar if by `filler` you mean https://github.com/ckeditor/ckeditor5-engine/blob/master/src/view/filler.js#L156, it seems this code does not have any impact on this issue (both in MacOS accent panel and Hiragana), so the cause must...

> May be that our dirty unsafe key hack fails here :( Yep -> https://github.com/ckeditor/ckeditor5-typing/issues/82

As for https://github.com/ckeditor/ckeditor5-engine/pull/861#issuecomment-285319329 - while navigating with arrow keys inside balloon panel the selection changes so the renderer updates it (`_updateSelection`) which breaks composition. Introducing e.g. blocking selection rendering during...

The two Safari issues (Spanish-ISO 3. and 4.) described in https://github.com/ckeditor/ckeditor5-engine/pull/861#issuecomment-285289224 are caused by the Safari auto correction mechanism so it is not releted to this issue. With auto correction...