I am afraid that this will not work. In outputfiles we can have wildcards. So consider the following

j = Job()
j.application.exe='touch'
j.application.args=['abcd.txt']
j.outputfiles=['*.txt']

If I print the job object now, I see

Ganga In [11]: j.outputfiles
Ganga Out [11]: [LocalFile(namePattern='*.txt', localDir='')]

so the wildcard is still there. When I now submit the job and look at it after it has completed, I see something different

j.submit()
# wait
Ganga In [17]: j.outputfiles
Ganga Out [17]: [LocalFile(namePattern='abcd.txt', localDir='/home/egede/gangadir/workspace/egede/LocalXML/3/output')]

so you see that it now shows the actual file that was created and not the wildcard. However, if I copy the job (to create a new one)

j = j.copy()
Ganga In [18]: j.outputfiles
Ganga Out [18]: [LocalFile(namePattern='*.txt', localDir='')]

you see that the wildcard is back. This is the correct behaviour (i.e. the new job is a copy of the unsubmitted one).

I do not believe that your change here will have that behaviour. I am not sure if we have tes cases for this, but I will start them now.

I do not think this latest change will work neither. In the last of your examples, the outputfiles should have "resolved" the wildcard and showed abcd.txt instead.