bug#35594: GNOME: Application icons are not displayed immediately after installation

[sirgazil]

Hi,

I installed the GNU system in a real machine using Guix 1.0 ISO installer 
(https://ftp.gnu.org/gnu/guix/guix-system-install-1.0.0.x86_64-linux.iso.xz).

Whenever I install a desktop application, the application icon does not show up 
immediately in the list of available applications. I have to log out and log in 
again to be able to see it.


## Steps to reproduce

1. Install a desktop application (I tried GIMP, Scribus, Inkscape, Audacity)
2. Click on "Activities".
3. Click on "Show Applications" (the button with nine dots).


## Unexpected result

The icon of the installed application is not in the list.


## Expected result.

The icon of the installed application is in the list.


---
https://sirgazil.bitbucket.io/