GUI "Update Manager" incorrectly show "Your System is up to date" at startup

[glenndk]

Describe the bug
GUI "Update Manager" 6.0.9 (mintupdate) incorrectly show "Your System is up to date" at startup by default.

When I a few seconds later press "Refresh" many updates are downloaded, and can be installed. I have discovered this behaviour at least three times.

To Reproduce
Steps to reproduce the behavior:

1. Open GUI "Update Manager"

Incorrectly show "Your System is up to date" at startup by default.

Expected behavior
GUI "Update Manager" should automatically make a refresh so it can detect if packages needs to be updated - but not download packages (can take a long time) - and then present a correct message; e.g. "no network access", "There are updates - press refresh" or "Your System is up to date"...

When GUI "Update Manager" has made an update, it should automatically make a refresh right after, to check if there is more packages that needs to be updated.

When GUI "Update Manager" is open, then it should automatically make a repeated refresh so it can detect if packages needs to be updated every 1 hour?/1 day?

Distribution:

• Linux Mint
• LMDE
• Other (please specify)

Software version:
GUI "Update Manager" 6.0.9

Locale:
"en US.UTF-8"

[wpshooter]

"IF", update manager is NOT set to automatically poll for updates (i.e. it is set basically to do updates manually when prompted by user), then when update manager is opened by the user it should NOT read "Your system is up to date", instead it should read "Click on refresh to poll for possible updates to your system". Then if it finds no available updates then and ONLY then should it say "Your system is up to date".

Thanks.

[wpshooter]

Hope I posted this where you'all can find it. This thing is confusing as $(@#@(.