Display of string is misleading when changing JavaScript value in Locals and Expressions

1. Open this QML code in Creator:

   import QtQuick 2.6
   import QtQuick.Window 2.2
   
   Window {
       visible: true
       width: 640
       height: 480
       title: qsTr("Hello World")
   
       MouseArea {
           anchors.fill: parent
           onClicked: {
               var someString;
               someString = "abcd";
               txt.text = someString
           }
       }
   
       Text {
           id: txt
           text: qsTr("Hello World")
           anchors.centerIn: parent
       }
   }
   

   I have it inside a Qt Quick UI project.

2. Place a breakpoint in line 15:

   txt.text = someString

3. Run this in the debugger.
4. Click the app's window.
   Execution stops at the breakpoint.
5. In Locals and Expressions view, double-click the value of someString.
   The quotation marks disappear so only the real content of the string is shown.
6. Type some other characters and press Enter.
   The old value is displayed again.
7. Repeat step 6 but enclose the string in quotation marks.
   Now the value will be updated.
8. Continue execution.
   The app uses the value you entered.

It is confusing that the quotation marks disappear when editing but you then have to add them yourself. Either the quotation marks should not disappear or there should be no need to add them when entering a value.