When creating arrays of old style objects, as shown by the Blork class

https://hg.savannah.gnu.org/hgweb/octave/file/15d3f8857326/test/classes/%40Blork

Matlab R2019a is able to (conjugate) transpose them without overloading (c)transpose, what essentially is a modification of the array shape.

x1 = Blork ();
x2 = [x1 x1];
x2';
error: ctranspose method not defined for Blork class
x2.';
error: transpose method not defined for Blork class

The same applies for classdef classes, using the plist_t2 class as example  https://hg.savannah.gnu.org/hgweb/octave/file/15d3f8857326/test/classdef

bla(1) = plist_t2;
bla(2) = plist_t2;
bla'
error: ctranspose method not defined for plist_t2 class
bla.'
error: transpose method not defined for plist_t2 class

The fix for the old style classes is rather simple and avoids slowdown by not using m-files for standard behavior.  Thus I would like to include it into 5.2.0.