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+++ This bug was initially created as a clone of Bug #982315 +++

Description of problem:
The strip of workspace thumbnails in the Gnome Shell Overview screen gets narrower and narrower as you create more and more workspaces until it eventually becomes invisible.

Version-Release number of selected component (if applicable):
gnome-shell-3.8.4-31.el7.x86_64

How reproducible:
every time

Steps to Reproduce:
1. open a gnome-terminal window on workspace #1 and check overview
2. open a gnome-terminal window on workspace #2 and check overview
3. open a gnome-terminal window on workspace #3 and check overview
4. repeat until the workspace thumbnail strip in the overview disappears
   (the number of workspaces needed depends on your screen resolution)

Actual results:
the workspaces in the overview are only a few pixels wide or completely invisible

Expected results:
the workspaces overview do not disappear

Additional info:

It works correctly with gnome-shell-3.10.4-2.fc20 in Fedora 20

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-0535.html