Not used for merges. Could be used for merge namespace conflicts or optionally set depending on conflict reason.
Namespace:  Microsoft.TeamFoundation.VersionControl.Server
Assembly:  Microsoft.TeamFoundation.VersionControl.Server (in Microsoft.TeamFoundation.VersionControl.Server.dll)
Syntax
'Declaration
Public Property PendingChangeId As Integer
public int PendingChangeId { get; set; }
public:
property int PendingChangeId {
    int get ();
    void set (int value);
}
member PendingChangeId : int with get, set
function get PendingChangeId () : int 
function set PendingChangeId (value : int)
Property Value
Type: System.Int32
Returns Int32.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.