Merge pull request #16612 from jrafanie/prevent_fine_infinite_loop

[FINE] Limit number of '::' when parsing model
(cherry picked from commit 90cb93e)

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1549241

lib/miq_expression/tag.rb

@@ -1,6 +1,6 @@
 class MiqExpression::Tag
   REGEX = /
-(?<model_name>([[:alnum:]]*(::)?)+)
+(?<model_name>([[:alnum:]]*(::)?){4})
 \.(?<associations>([a-z_]+\.)*)
 (?<namespace>\bmanaged|user_tag\b)
 -(?<column>[a-z]+[_[:alnum:]]+)