Multi value in Bundle settings

I have defined a multi value item in the Root.plist of bundle settings and I see a strange behavior. Not serious problem, but stange and would like to check if it's normal or caused by a problem in my use of it.

The item is defined as follows:

<dict>

<key>Type</key>

<string>PSMultiValueSpecifier</string>

<key>Title</key>

<string>Color</string>

<key>Key</key>

<string>ColorKey</string>

<key>DefaultValue</key>

<integer>2</integer>

<key>Titles</key>

<array>

<string>"blue"</string>

<string>"green"</string>

<string>"brown"</string>

</array>

<key>Values</key>

<array>

<integer>0</integer>

<integer>1</integer>

<integer>2</integer>

</array>

</dict>

  Type
  PSMultiValueSpecifier
  Title
    Color
  Key
   colorKey
  DefaultValue
    2
  Titles
    "blue"
    "green"
    "brown"
  Values
    0
    1
    2
  
 

When I go to iOS settings (in simulator), the item "Color" appears as expected :

Color Blue >

tapping on the arrow '>' shows the table to select a color.

When I go back, the selected color appears.

So, works OK

BUT, if I tap again on the arrow, nothing occurs.

If I return from there to general settings and select the app again, then it is possible to make a new selection, only once.

Is that the normal behavior ?