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Avoid changing dpi in Text.get_window_extent if unspecified.#16927
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Somehow this causes height changes to propagate from the canvas untilit's zero-height (for Tk at least). This is probably a bug, but it'smuch more subtle and difficult to find, so this patch will suffice fornow.
Closing in favour of#16929, which I believe to be the more correct fix. |
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PR Summary
Somehow this causes height changes to propagate from the canvas until it's zero-height (for Tk at least). This is probably a bug, but it's much more subtle and difficult to find, so this patch will suffice for now.
See#16926, which this fixes, but not entirely satisfactorily. Maybe if we're lucky, it'll fix the flakiness on AppVeyor too.
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