Fix crash on gui change (e.g. image remove / change) #70
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Outdated suggestions cannot be applied.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.
Turns out, nanogui has a problem with dangling pointers when Widgets are removed (wjakob/nanogui#331)
This PR incorporates a not-yet-merged fix for the problem (wjakob/nanogui#341) in tev's nanogui fork.
Fixes #69 (and likely also the until-now elusive crash on closing images)