Makes sure that all node edit links are prefixed

[itsjoekent]

What's this PR do?

Makes sure that the correct prefix is applied to node edit pages

How should this be manually tested?

Can you click/goto global edit links, and then view the page without error?
What about normal edit links?

Any background context you want to provide?

The node edit logic never cared about prefixes as they aren't required for the correct node edit page. The implications of this however are the cause of #5952

What are the relevant tickets?

Fixes #5952

[sergiitk]

How dosomething_global_get_current_prefix() can return an empty string?

[itsjoekent]

global language

[sergiitk]

Then better use === operand and explain the logic in comment.
Also, !empty($prefix).

[itsjoekent]

ah, yeah Ill use the empty function

[itsjoekent]

@sergii-tkachenko fixed!

[sergiitk]

I think it's better to use === '' for the first statement, as I explained in the #5978 (comment).

[sergiitk]

And explain in the comment after if that the function returns an empty string for Global language.

[itsjoekent]

whats the difference between === ' ' and empty?

[sergiitk]

Empty = FALSE = '' = 0 = NULL = "0" = 0.0 = array(), etc...
=== '' just equals empty string.

[sergiitk]

http://php.net/manual/en/function.empty.php

[itsjoekent]

@sergii-tkachenko updated, I think I got what you were suggesting now

[sergiitk]

Thanks @deadlybutter! 👍