Caja does not show previews of text files on Bionic - is it normal?

This post may be considered as bug-report citation (see bug 1787368 on LaunchPad ).

Steps to reproduce:

  1. Install Ubuntu MATE 18.04 LTS (or upgrade from 16.04 LTS)
  2. Create text file somewhere (in home folder for example) with echo text > ~/file.txt.
  3. Open Caja in home folder

Expected results:

  • Caja shows preview (the contents) of file.txt in Icon view.

Actual results:

  • Caja does not show preview of file.txt.

Notes:

  1. all settings in Preview tab are set to Local Only
  2. this happens on clean user profile and/or after dconf reset -f / and gsettings reset-recursively org.mate.caja
  3. Problem first seen on AskUbuntu ( https://askubuntu.com/q/1065825/66509 ).

Screenshots:
Caja on Xenial Xerus 16.04 LTS MATE:

Caja on Xenial Xerus 18.04 LTS MATE:

Is it just me? Could anyone confirm this?

Hi Norbert_X,
For me, the previews disappeared when I upgraded from 14.04, trusty, to 16.04, xenial. My impression is that it is a consequence of the shift from GTK2 to GTK3, and that the developers didn´t prioritize it, since it isn´t a critical aspect.
But the feature is nice. Not necessary, but nice. Nicer than the blank text file icons.