erik retitled D7: INP-1379 - Don't query related items, when main item isn't found from to SQL error, when printing related pages.

erik retitled D6: MINB-22 - Fix notice during Poll voating from to Notice, when making a vote on Poll.

erik retitled D5: TADV-34 - Incorrect usage of "block_no_data" attribute from to Incorrect usage of "block_no_data" attribute.

erik retitled D4: INP-1382 - Rename "CategoryItemsEventHander" class into "CategoryItemsEventHandler" class from to Typo in "CategoryItemsEventHander" class name.