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Merge pull request #2344 from xillibit/k30_bugs8

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K 3.0.4 : Warning: preg_match() expects parameter #2303 (to be sure)
Merge pull request #2343 from xillibit/k30_bugs3

 K 3.0.4 : Warning: preg_match() expects parameter #2303
Merge branch 'master' of github.com:Kunena/Kunena-Forum