Motivation / Problem

That moment a crash-report tells you it was missing a GRF + MD5 which you really have on disk. "I don't understand", you say. You check, and check, and check again.

After 15 minutes you start to doubt yourself .. but you realise: this is OpenTTD, better check the source.

Yes.

It was lying to us.

Description

The text suggests it reports the original md5, but it does in fact
report the replaced md5. Now it reports both.

Limitations

Checklist for review

Some things are not automated, and forgotten often. This list is a reminder for the reviewers.

• The bug fix is important enough to be backported? (label: 'backport requested')
• This PR affects the save game format? (label 'savegame upgrade')
• This PR affects the GS/AI API? (label 'needs review: Script API')
  • ai_changelog.hpp, gs_changelog.hpp need updating.
  • The compatibility wrappers (compat_*.nut) need updating.
• This PR affects the NewGRF API? (label 'needs review: NewGRF')
  • newgrf_debug_data.h may need updating.
  • PR must be added to API tracker