Added a call to a special method in a pattern generator when it is installed into a generator sheet.
Added a call to a special method in a pattern generator when it is installed into a generator sheet.

mjabri/topographica,mjabri/topographica,ioam/topographica,Tasignotas/topographica_mirror,mjabri/topographica,ioam/topographica,mjabri/topographica,Tasignotas/topographica_mirror,ioam/topographica,mjabri/topographica,ioam/topographica,Tasignotas/topographica_mirror,ioam/topographica,Tasignotas/topographica_mirror,Tasignotas/topographica_mirror