TYPO3 pibase extension with compatibility6 - Duplicate double main() method calls -

we're trying use legacy pibase extension worked in typo3 6.1 installation in typo3 7.6 environment. installed compatibility6 extension.

the pibase extension works, (tm) seems call pibase main() method twice; confuses bit of internal workings of extension, because static counters not start fresh.

we found out tt_news has same problem, executed twice , can lose pagination properties.

might issue of compatibility6 extension, or within typo3v7 core? couldn't deduce first call happens (the output created in second main() call).

the solution in typoscript added multiple calls content:

page.10.variables {    main_content < styles.content.get    main_content.select.where = colpos = 0     another_content < styles.content.get    another_content.select.where = colpos = 0 } 

we needed rewrite main content once. maybe helps similar problem.