Merge pull request #70685 from stmSi/fix-nan-graphedit-infinite-loop

Fix: NaN value making infinite loop inside GraphEdit's `NOTIFICATION_DRAW`

scene/gui/graph_edit.cpp

@@ -1496,6 +1496,7 @@ float GraphEdit::get_zoom() const {
 
 void GraphEdit::set_zoom_step(float p_zoom_step) {
 	p_zoom_step = abs(p_zoom_step);
+	ERR_FAIL_COND(!isfinite(p_zoom_step));
 	if (zoom_step == p_zoom_step) {
 		return;
 	}