Fix CPU/GPU usage in file dialog and crash with single-commit repos#75

marcoxyz123 wants to merge 2 commits intogit-bahn:mastergit-bahn/git-igitt:masterfrom

marcoxyz123:fix/event-loop-and-single-commit-crashmarcoxyz123/git-igitt:fix/event-loop-and-single-commit-crashCopy head branch name to clipboard