/// <summary>
/// Remove the old <see cref="ProjectData"/> for <paramref name="id"/>, replace it with
/// <paramref name="newData"/>, and and connect to <paramref name="newData"/>.
/// </summary>
internal void ReplaceData(ProjectId id, ProjectData newData, out ProjectData oldData)
{
lock (updatingProjectDataLock) {
oldData = RemoveData(id);
if (newData != null)
{
newData.Connect();
projectDataMap [id] = newData;
}
}
}