TST: optimize.linprog/milp: add tests for various bug reports #20589
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Reference issue
Closes gh-18907 # already fixed by HiGHS 1.6.0, it seems
Closes gh-20116
Closes gh-20336
What does this implement/fix?
There were a few open bug reports that will may be closed after upgrading to the most recent HiGHS. In case we want regression tests, here they are. If not (since these are all upstream fixes), consider this a meta-issue of bugs for which we're looking for upstream fixes.