I removed the ECVS_MODULE line and added ESVN_URI_APPEND="E-MODULES-EXTRA/${PN#e_modules-}". This works fine for me.
I updated the enlightenment overlay. Please test the patch in bug #246349 and report any errors.
Maybe you could allow me to commit needed fixes to the enlightenment overlay, if you yourself dont have the time for doing it?
fixed in overlay