[TECHNICAL-SUPPORT] LPS-36192 Modified Site pages should not block Site Template merge

Hi Tamás,

See @epgarcia's comment at
http://in.liferay.com/web/global.engineering/forums/-/message_boards/message/1403476?p_p_auth=tH3FF0mO#_19_message_1404631.

Please, forward this pull to Eduardo, if it passes your review.

Regards,
Tibor