output: fix wlr_output_preferred_mode fallback
`mode` points to an invalid pointer (head of the list) when the loop stops. Closes: https://github.com/swaywm/sway/issues/4717
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@ -406,7 +406,7 @@ struct wlr_output_mode *wlr_output_preferred_mode(struct wlr_output *output) {
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}
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// No preferred mode, choose the last one
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return mode;
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return wl_container_of(output->modes.prev, mode, link);
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}
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static void output_state_clear_buffer(struct wlr_output_state *state) {
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