Indenting when pasting text

[ivangeorgiew]

When I try to paste and format text from a function, the indentation is wrong. However when I paste the text and then manually indent, it is correct.
This only occurs for xml text, everything else is indented correctly.
I tried echoing the results of the functions inside after/indent which decide if the indentation should be xml or js and they showed that the result's syntax groups missed '^xml' or '^jsx'
Therefore I believe the issue is from the syntax groups not being set immediately after the paste.
How can this be fixed?

[ivangeorgiew]

For anyone else experiencing this annoying issue - you have to make use
:syn sync maxlines=(the number of lines between the beginning and the ending line of the paste)
and then reindent the pasted text.