Collection header injection causes broken Inspector in some cases

[TheXRMonk]

Steps to reproduce:

1. Create an empty GO
2. Right-click it into a collection
3. Ctrl+z
4. ...
5. cry... :(

[neon-age]

By 'breaking' you mean that Transform component is kept hidden?

[TheXRMonk]

By 'breaking' you mean that Transform component is kept hidden?
Yes, this is what it looks like;

[neon-age]

Think I fixed all issues related to header injection. Transform is no longer hidden using hideFlags

[neon-age]

The fix is up in 0.3.1-pre.8

[neon-age]

There is another issue caused by Prefab inspector. They sometimes name headers differently there (CollectionEditor_Collection_blabla instead of inspector title), and other times EditorElement is duplicated, somehow.. So injection throws bunch of errors.

I'll look into it later.