I'm using two step approach to retrieve "see also" section links from articles by retrieving sections and using the section index for links action.

Today I noticed that for the article "Synchronous programming language" this gives unexpected results.

The page

  https://en.wikipedia.org/w/api.php?action=parse&prop=sections&page=Synchronous%20programming%20language&format=xml

returns

...  <s toclevel="1" level="2" line="See also" number="4" index="4" .....

and the following query

https://en.wikipedia.org/w/api.php?action=parse&prop=links&page=Synchronous%20programming%20language&section=4&format=xml

gives a long list of links very different to the actual correct list shown in the wikipedia article. Other usage of the same algorithm with other articles works correctly.

Is this a bug?