[TextInputLayout] Fixed unnecessary min height when losing focus with multiple lines.

Resolves #3451

PiperOrigin-RevId: 579017528

Author: pekingme

lib/java/com/google/android/material/textfield/TextInputLayout.java

@@ -440,6 +440,8 @@ public interface OnEndIconChangedListener {
 
   @ColorInt private int disabledColor;
 
+  int originalEditTextMinimumHeight;
+
   // Only used for testing
   private boolean hintExpanded;
 
@@ -1562,6 +1564,8 @@ private void setEditText(EditText editText) {
         Gravity.TOP | (editTextGravity & ~Gravity.VERTICAL_GRAVITY_MASK));
     collapsingTextHelper.setExpandedTextGravity(editTextGravity);
 
+    originalEditTextMinimumHeight = ViewCompat.getMinimumHeight(editText);
+
     // Add a TextWatcher so that we know when the text input has changed.
     this.editText.addTextChangedListener(
         new TextWatcher() {
@@ -1574,6 +1578,9 @@ public void afterTextChanged(@NonNull Editable s) {
             if (placeholderEnabled) {
               updatePlaceholderText(s);
             }
+            if (ViewCompat.getMinimumHeight(editText) != originalEditTextMinimumHeight) {
+              editText.setMinimumHeight(originalEditTextMinimumHeight);
+            }
           }
 
           @Override