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Toggle folding picked the innermost fold containing the offset, but a member's logical region is fragmented: the body fold starts at the opening brace, the XML documentation has an independent fold, and the header line belongs to neither, so toggling there collapsed the whole enclosing type. Visual Studio's source editor keeps documentation regions independent, but its metadata-as-source view treats the member's leading trivia as one hideable unit; for a read-only decompiler view the grouped behavior is the intuitive one. The writer now records where an entity declaration begins, and the definition's fold carries that logical start. Toggling targets the fold whose logical region innermost-contains the offset, so the header line targets the member rather than the type, and leading documentation folds follow the member fold's new state. Inside the documentation the doc fold itself is the innermost region and still toggles alone. Toggle all folding now follows Visual Studio's Toggle All Outlining parity: a mixed state expands everything, a uniform state flips. Assisted-by: Claude:claude-fable-5:Claude Code