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a49f95d887
Problem: `showmode` in `terminal_enter` may cause `vpeekc` to process events, which may handle pending escape sequences. If `CSI ? 25 l` is handled to hide the cursor, it may remain hidden even after leaving terminal mode if both `terminal_enter` and (indirectly) `showmode` call `ui_busy_start`, as there is only one matching call to `ui_busy_stop` after leaving terminal mode. Solution: let `terminal_enter` handle setting the initial visibility of the cursor before calling `showmode`. Closes #32456. This simple solution assumes it isn't possible for e.g. `os_breakcheck` to be called indirectly by something else before `terminal_enter` initially handles cursor visibility and after it restores it, which I think is true.