Steps to reproduce the issue

Patch any PR that has more than 30 diff files - I hit the problem on 33926

Expected result

Some sort of warning - only the first 30 diffs are applied

Actual result

No warning and nobody seems to have noticed before

System information (as much as possible)

Using Firefox on Mac Catalina with MAMP, PHP8, Eclipse IDE

Additional comments

In administrator/components/patchtester/PatchTester/Model/PullModel.php on line 553 the count of files obtained from github is 30. Anything in the PR after that is dropped.

This needs documentation somewhere! Where is the limit set? Can it be altered?