Fix copy of TF1Convolution and TF1NormSum#4138

Merged

lmoneta merged 2 commits intoroot-project:masterfrom

lmoneta:fix_copy_tf1convolution

Aug 1, 2019

Commits on Jul 31, 2019

Fix a bug in Copy of Tf1Convolution when created with compiled TF1 objects. One needs to use TF1::Copy instead of TF1::Clone when copying the contained objects
lmoneta
committed
Fix same bug in copy constructor for TF1NormSum. Support in this case that the contained TF1 pointer can be of a derived class (e.g. TF2 or TF3)
lmoneta
committed