title: App crashing when I'm trying to use custom EditText
body: <p>I'm using custom editText, and receive crush on a start. It's also ruins my constraints on a design page of xml. With default one everything is ok. </p>
  
  <p><b>Code for custom EditText:</b> Using it to lock cursor in the end.</p>
  
  <pre><code>class CustomEditText(context: Context) : EditText(context) {
  
      public override fun onSelectionChanged(start: Int, end: Int) {
          val text = text
          if (text != null) {
              if (start != text.length || end != text.length) {
                  setSelection(text.length, text.length)
                  return
              }
          }
  
          super.onSelectionChanged(start, end)
      }
  }
  </code></pre>
  
  <p><b>Code in xml:</b></p>
  
  <pre><code>&lt;sh1gure.test.creditcardform.view.CustomEditText
      android:id="@+id/etCardDate"
      android:layout_width="0dp"
      android:layout_height="50dp"
      android:layout_marginEnd="8dp"
      android:background="@drawable/edit_text_back"
      android:ems="10"
      android:hint="@string/mm_yy"
      android:inputType="number"
      android:maxLength="@integer/max_length_date"
      android:paddingLeft="8dp"
      android:paddingRight="8dp"
      app:layout_constraintBottom_toTopOf="@+id/btn_add_card"
      app:layout_constraintEnd_toStartOf="@+id/etCardCvv"
      app:layout_constraintHorizontal_bias="0.5"
      app:layout_constraintStart_toStartOf="@+id/etCardNumber1"
      app:layout_constraintTop_toBottomOf="@+id/textView3" /&gt;
  </code></pre>
  
  <p><b>Logcat:</b></p>
  
  <pre><code>Process: sh1gure.test.creditcardform, PID: 24143
  java.lang.RuntimeException: Unable to start activity ComponentInfo{sh1gure.test.creditcardform/sh1gure.test.creditcardform.view.MainActivity}: android.view.InflateException: Binary XML file line #53: Binary XML file line #53: Error inflating class sh1gure.test.creditcardform.view.CustomEditText
      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2925)
      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3060)
      at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
      at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
      at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1818)
      at android.os.Handler.dispatchMessage(Handler.java:106)
      at android.os.Looper.loop(Looper.java:193)
      at android.app.ActivityThread.main(ActivityThread.java:6762)
      at java.lang.reflect.Method.invoke(Native Method)
      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
   Caused by: android.view.InflateException: Binary XML file line #53: Binary XML file line #53: Error inflating class sh1gure.test.creditcardform.view.CustomEditText
   Caused by: android.view.InflateException: Binary XML file line #53: Error inflating class sh1gure.test.creditcardform.view.CustomEditText
  </code></pre>