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Ensure grid index is valid before trying to change value.
(cherry picked from commit f98acd5cfb
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@ -641,7 +641,7 @@ public:
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const Ref<InputEventMouseButton> mb = p_ev;
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if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT && mb->is_pressed()) {
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if (mb.is_valid() && mb->get_button_index() == BUTTON_LEFT && mb->is_pressed() && hovered_index > 0) {
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// Toggle the flag.
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// We base our choice on the hovered flag, so that it always matches the hovered flag.
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if (value & (1 << hovered_index)) {
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