MgPropertyCollection:: Remove() returns true when trying to remove a non-existing element

[jiab]

Step to recur:

1. Construct a MgPropertyCollection? object, and a MgBooleanProperty? object.

2. Call Remove() using the MgBooleanProperty? object as argument.

Sample code:

MgPropertyCollection? props= new MgPropertyCollection?();

MgBooleanProperty? boolProp = new MgBooleanProperty?("prop1", true);

bool result = props.Remove(boolProp);

Expect result: false

Actual result: true

[trevorwekel]

Fixed by

 http://trac.osgeo.org/mapguide/changeset/2524