OK, I reproduced it on a simple example (11 classes, 150 lines total).

To reproduce:

Unpack newest_bug.tar.bz2.
Compile: ec -config bug.ecf -verbose
Touch file:  touch source/reticle_view_element.e
Compile again: ec -config bug.ecf -verbose

On the second compile, compiler does degree 3 for some additional classes
(besides RETICLE_VIEW_ELEMENT).  Definitely related to use of anchored types.