Actually the bug that bug 1606501 is a duplicate of is fixed. I haven't yet confirmed that 1606501 is really fixed too.
OK, I understand this bug is something you don't want fixed. And the description of this bug alone makes it a low priority issue, sure.
However the implications of not fixing this bug are larger. That is every time an app starts the user may see a flicker from black to the real window contents. But I expect in due time someone will log a bug for that specific consequence and it can be discussed elsewhere.
Actually the bug that bug 1606501 is a duplicate of is fixed. I haven't yet confirmed that 1606501 is really fixed too.
OK, I understand this bug is something you don't want fixed. And the description of this bug alone makes it a low priority issue, sure.
However the implications of not fixing this bug are larger. That is every time an app starts the user may see a flicker from black to the real window contents. But I expect in due time someone will log a bug for that specific consequence and it can be discussed elsewhere.