[CollapsingToolbarLayout] Fix issues related to rotating multiline collapsing toolbars

PiperOrigin-RevId: 636597914

Author: dsn5ft

lib/java/com/google/android/material/appbar/CollapsingToolbarLayout.java

@@ -599,13 +599,15 @@ protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
       updateTextBounds(0, 0, getMeasuredWidth(), getMeasuredHeight(), /* forceRecalculate= */ true);
 
       int lineCount = collapsingTextHelper.getExpandedLineCount();
-      if (lineCount > 1) {
+      if (lineCount > 1 && collapsingTextHelper.getExpansionFraction() == 0f) {
         // Add extra height based on the amount of height beyond the first line of title text.
         int expandedTextHeight = Math.round(collapsingTextHelper.getExpandedTextFullHeight());
         extraMultilineHeight = expandedTextHeight * (lineCount - 1);
         int newHeight = getMeasuredHeight() + extraMultilineHeight;
         heightMeasureSpec = MeasureSpec.makeMeasureSpec(newHeight, MeasureSpec.EXACTLY);
         super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+      } else {
+        extraMultilineHeight = 0;
       }
     }