Pull Request Voting shows a strange behaviour

[mandelsoft]

What happened:

As can be seen in #126, the events trigger every job two times
(push, pull_request and pull_request_target). For the different events different commits are used and the one used for the pull_request events always for a piece of code not present in the actual commit.

What you expected to happen:
Jobs provided for the different events show the same result.

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know:

Environment: