Subtickets Plugin in TRAC 1.5.3

[haroldalcaldesolarte]

Greetings

I have installed Subtickets plugin in Trac 1.5.3, apparently, it works fine, but when looking at the children of a ticket, they are sorted in numerical order, and not by hierarchy of parent, child.

Example:

It should come out like this:
#3010
#3013
#3015
#3020
#3017
#3012
#3030

But this comes out:
#3010
#3012
#3013
#3015
#3017
#3020
#3030

ps: I have another instance of trac 1.2.2 and the plugin works perfectly here.