tree_show inhomogeneous visualization of object leaves' type, dimension and value

Bug Description

non homogeneous rendering of object leaves' type, dimension and value

Steps to reproduce

List created from parametric study on large data set leads to the following view in tree_show : the EtatPhs list is collecting numeric values in matrix of variable number of rows (which prevents to concatenate in hypermatrix).
The issue is that for most of EtatPhs entries only the values' type and matrix dimensions are displayed (constant size nxm, like a short summary description) while for others the matrix values are displayed with inline syntax [,,,;,,,; etc...] without values' type and matrix dimensions information. When checking the overall list structure in tree_show at development stage, it's not easy to get the dimensions of the matrix elements whose values are fully displayed in very long characters lines, which makes the analysis of results more complicated.

What is the expected correct behavior?

If the decision to display leave's value is relying on limitation of characters line's length to switch to short summary description, it might be relevant to include systematically the short summary description before the detailed values in the displayed string.

Thanks for your attention