Jonas Jenwald 9c857166cc Avoid downloading test PDFs multiple times
It's somewhat common for multiple test-cases to use the same PDF, for example tests for both `eq` and `text` with one PDF.
Currently the logic in `downloadManifestFiles` doesn't handle duplicate test PDFs, which leads to wasted time/resources by downloading the same PDF more than once. Naturally the effect of this is especially bad when downloading all linked PDFs.

Total number of test PDFs downloaded:
 - 507, with `master`.
 - 447, with this patch.
2026-03-25 08:18:05 +01:00
..
2026-03-04 10:40:39 +01:00
2013-03-15 11:24:08 -07:00
2026-03-20 20:17:13 +01:00