Unclear meaning of "cherry pick" when asking for a precheck Gerrit

When asking for a precheck one can select "cherry pick". This is undocumented in https://testresults.qt.io/coin/doc/precheck.html

I've assumed that it would mean to cherry pick the patch on top of the target branch, and then run CI on the result. (Instead of checking out the SHA of the commit to test, and that would include any parent commit – as well as not be necessarily done on the top of the target branch).

In particular: if the patch was the Nth in a chain of patches, it would be cherrypicked and checked *alone* .

It doesn't look like this is the case : https://codereview.qt-project.org/c/qt/qtbase/+/616625/21#message-cc0f852996514b2804d73e208063ae96f9a61ab7 asked for a cherry pick precheck, but there was a failure due to the parent patch , which shouldn't have been included in the precheck at all.

So what does cherry picking do?