specTemplate doesn't work with all spec keys

[vugardzhamalov]

Hi there!

It seems as if pipeline template specified in the 'specTemplate:' works fine if I declare 'stages:' and/or 'steps:' keys in the template file. At the same time it can't handle 'triggers:' key in the template file - meaning I must have it only in the pipeline spec file itself but not in the template file. I was wondering if this is expected? And if is indeed expected - anyone knows if this is documented anywhere at all? Thank you!