Check three convolutions involving time-like hadron

[Radonirinaunimi]

Checks the case in which one has three convolutions that involve a Fragmentation Function in the CLI and in the Python API.

[cschwan]

Instead of testing a convolution, I suggest we test the scale variations. This is more general and should cover more lines.

[Radonirinaunimi]

Instead of testing a convolution, I suggest we test the scale variations. This is more general and should cover more lines.

Do you mean with proper scale-varied predictions/grids? So far, https://github.com/NNPDF/sihp-pp cannot track the lr, lf, and la orders and there isn't a plan to do so soon. So if we want to test this, I'd say we can do so with maybe the SIA and SIDIS grids.

[cschwan]

I meant what I did in commit c4f85b9, but given that there's no log-xia grid you're right that this isn't very useful.

[Radonirinaunimi]

So, could this be merged?