This bug was fixed in the package gnome-shell - 3.36.4-1ubuntu1

---------------
gnome-shell (3.36.4-1ubuntu1) groovy; urgency=medium

  * Merge with debian, including new upstream stable release, remaining changes:
    - Replace gnome-backgrounds dep with ubuntu-wallpapers and Suggests
      gnome-themes-standard-data, gnome-backgrounds
    - Add some Recommends:
      + ubuntu-session (| gnome-session) to have the ubuntu session available
      + xserver-xorg-legacy
      + yaru-theme-gnome-shell for the default ubuntu theming
    - Update debian/gbp.conf with Ubuntu settings
    - gnome-shell-common.prerm: Remove deprecated ubuntu theme alternative
    - ubuntu/desktop_detect.patch:
      + add caching for desktop detection to avoid querying the current
        desktop env variable as iterate through the list each time. For the
        time of the Shell process, we can expect this env variable to stay
        stable.
    - ubuntu/smarter_alt_tab.patch:
      + quick alt-tab (without showing up the switcher) switch only between
        the last window of the last 2 applications to be focused instead of
        raising all windows of those apps.
    - ubuntu/lightdm-user-switching.patch:
      + Allow user switching when using LightDM.
    - ubuntu/lock_on_suspend.patch
      + Respect Ubuntu's lock-on-suspend setting.
    - ubuntu/background_login.patch
      + Change default background color as we modified the default GDM color
        for our ubuntu session.
    - ubuntu/gdm_alternatives.patch
      + Add support for GDM3 theme alternatives
    - optional-hot-corner.patch
      + enable patch proposed by upstream developer already in package (but
        not in series) to add a settings for optional hot corner activation.
    - main-show-an-error-message-on-gnome-shell-crash.patch,
      global-make-possible-to-set-debug-flags-dynamically.patch,
      main-increase-the-granularity-of-backtraces-in-SHELL_DEBU.patch,
      main-add-backtrace-crashes-all-and-backtrace-all.patch,
      sessionMode-add-support-for-debugFlags-parameter.patch:
      + Improve debug JS tracing for crash reports
    - st-scroll-view-Handle-the-case-where-scrollbars-are-NULL.patch:
      + Fix crash on theme changes
    - ubuntu/search-call-XUbuntuCancel-method-on-providers-when-no-dat.patch:
      + stop searches when requested from UI
    - magnifier-Show-cursor-when-magnifier-is-enabled-and-scale.patch:
      + Show monitor scaled cursor when magnifier is enabled
    - Break gnome-shell-extension-desktop-icons (<< 19.01.3+git20190814)
  * d/p/ubuntu/gdm_alternatives.patch,
    d/p/ubuntu/secure_mode_extension.patch:
    - Refreshed as pr upstream changes

gnome-shell (3.36.4-1) unstable; urgency=medium

  * New upstream stable release (LP: #1888060)
    - Hide switch-user button on lock screen if unsupported
    - Improve world clocks styling
    - Improve calendar-server performance (Closes: #964851, LP: #1885346)
    - Fix regressions in redesigned modal dialogs (LP: #1871868)
    - Better support sandboxed apps with multiple .desktop files
    - Fix on-screen keyboard size in portrait orientation
    - Support scrolling anywhere in slider menu items
    - Fixed crash
    - Plugged leaks
  * debian/control:
    - Bump dependency on ibedataserver1.2 and evolution-data-server to 3.33.1
  * d/p/shell-mime-sniffer-Ignore-invalid-file-content-type.patch:
    - Dropped (merged upstream)
  * d/p/shell-window-tracker-Tighten-sandbox-ID-prefix-check.patch,
    d/p/extensionDownloader-Fix-check-for-updates-with-several-ex.patch,
    d/p/Update-Brazilian-Portuguese-translation.patch,
    d/p/Update-Brazilian-Portuguese-translation-1.patch,
    d/p/keyboard-Move-named-icons-into-subdirectories.patch,
    d/p/keyboard-Fix-missing-key-icons-in-numeric-level.patch,
    d/p/calendar-server-Remove-delay-before-event-emission.patch:
    - Cherry-picked from upstream stable branch, as they're reiterations to fix
      issues introduced in various 3.36.x releases.

 -- Marco Trevisan (Treviño) <email address hidden>  Mon, 20 Jul 2020 18:18:57 +0200