[Bug 1759558] [NEW] Unchecking or checkmarking sources in Software & Updates are not always possible

[Harald H.]

Public bug reported:

Reproduce:
- Open "Software & Updates"
- Select the tab "Ubuntu Software"
- Click on one of the checkboxes under "Installable from CD-ROM/DVD"
- If you are asked for authentication, cancel out of the window and try clicking on the checkbox again

Observe that you are not always asked for authentication and therefore
not always able to change the options.

The bug is not reproducible for the checkboxes under "Downloadable from
the Internet" on the same tab, but it is reproducible on the tab "Other
Software" which has a similar checkbox list as "Installable from CD-
ROM/DVD".

** Affects: software-properties (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bionic

** Description changed:

  Reproduce:
  - Open "Software & Updates"
  - Select the tab "Ubuntu Software"
  - Click on one of the checkboxes under "Installable from CD-ROM/DVD"
- - If you are asked for authentication, cancel out of the windows and try clicking on the checkbox again
+ - If you are asked for authentication, cancel out of the window and try clicking on the checkbox again
  
  Observe that you are not always asked for authentication and therefore
  not always able to change the options.
  
  The bug is not reproducible for the checkboxes under "Downloadable from
  the Internet" on the same tab, but it is reproducible on the tab "Other
  Software" which has a similar checkbox list.

** Description changed:

  Reproduce:
  - Open "Software & Updates"
  - Select the tab "Ubuntu Software"
  - Click on one of the checkboxes under "Installable from CD-ROM/DVD"
  - If you are asked for authentication, cancel out of the window and try clicking on the checkbox again
  
  Observe that you are not always asked for authentication and therefore
  not always able to change the options.
  
  The bug is not reproducible for the checkboxes under "Downloadable from
  the Internet" on the same tab, but it is reproducible on the tab "Other
- Software" which has a similar checkbox list.
+ Software" which has a similar checkbox list as "Installable from CD-
+ ROM/DVD".

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https://bugs.launchpad.net/bugs/1759558

Title:
  Unchecking or checkmarking sources in Software & Updates are not
  always possible

Status in software-properties package in Ubuntu:
  New

Bug description:
  Reproduce:
  - Open "Software & Updates"
  - Select the tab "Ubuntu Software"
  - Click on one of the checkboxes under "Installable from CD-ROM/DVD"
  - If you are asked for authentication, cancel out of the window and try clicking on the checkbox again

  Observe that you are not always asked for authentication and therefore
  not always able to change the options.

  The bug is not reproducible for the checkboxes under "Downloadable
  from the Internet" on the same tab, but it is reproducible on the tab
  "Other Software" which has a similar checkbox list as "Installable
  from CD-ROM/DVD".

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