TAdvTreeComboBox resized itself on the form?

I was comparing changes to a .dfm that I only changed the border icon for the form for. I noticed additional changes to the TAdvTreeComboBox that I didn't make. Three things changed:

Width = 330
Version = ''
ExplicitWidth = 326

Width = 326
Version = ''
ExplicitWidth = 322

I note that it looks like something used the ExplicitWidth to set the Width which then caused the control to be resized all by itself?

Version is normal when the component version changes and the IDE is responsible for adding ExplicitWidth. This is not originating from the component itself.