GitUnstashDialog: select the first stash in the list by default.

plugins/git4idea/src/git4idea/ui/GitUnstashDialog.java

@@ -320,6 +320,7 @@ public class GitUnstashDialog extends DialogWrapper {
     catch (VcsException e) {
       // ignore error
     }
+    myStashList.setSelectedIndex(0);
   }
 
   /**
@@ -381,6 +382,11 @@ public class GitUnstashDialog extends DialogWrapper {
     return "reference.VersionControl.Git.Unstash";
   }
 
+  @Override
+  public JComponent getPreferredFocusedComponent() {
+    return myStashList;
+  }
+
   /**
    * Show unstash dialog and process its result
    *