#isNull protection in all #delete methods for TF_*. When an image is saved all ExternalAddresses are Nulled, if on reopening the image a TF_* is deleted this produces a VM crash. This will avoid the crash
#isNull protection in all #delete methods for TF_*. When an image is saved all ExternalAddresses are Nulled, if on reopening the image a TF_* is deleted this produces a VM crash. This will avoid the crash

Cuis-Smalltalk/Machine-Learning,Cuis-Smalltalk/Machine-Learning,Cuis-Smalltalk/Machine-Learning