The behat step "I draw on the pdf" creates the exact same line every
time it is called. This can cause issues in a situation like the following:
- Student uploads PDF
- Teacher annotates page 1
- Student edits submission, adding another PDF
- Teacher annotates page 1 again
- When the student looks at their annotated PDF it appears the same as
before they added the second PDF (i.e., they don't see extra pages for
the second PDF)
Exactly why this happens isn't clear, and in practice this probably never
happens because the chances of drawing the exact same line twice are almost
0. However, when testing the functionality added in MDL-45580 it was causing
issues.
Cameron Ball
89d8c9ec0a