(Intermittent) Some solutions cannot be starred/unstarred

[FelixKlarYatta]

Steps to reproduce

1. In Eclipse, open "Help > Eclipse Marketplace..."
2. In Marketplace window switch to "Favorites" tab
3. Sign in with your Eclipse account
4. In Obeo Marketplace, select "Popular" and star solution "Obeo Smart EA" (so it becomes a favorite solution)

Observed

There is a chance that "Obeo Smart EA" loses its star / regains its star (depending on its previous state) after some seconds.

Environment

Eclipse 2023-12 (4.30.0) "eclipse-java-2023-12-R-win32-x86_64" for Windows 11
with Marketplace Client 1.10.2.v20231116-1812
(occurs also with latest Marketplace Client 1.10.3.v20240221-1216 from https://download.eclipse.org/mpc/drops/1.10.3/v20240221-1216/ )

[SteveSchneiderYatta]

This is also reproducible on MacOS (Monterey) using the same steps detailed in the main issue.

For both the Obeo and Red Hat marketplaces, solutions will intermittently be "unstarred" after the user has starred them, and will not appear in the tab Favorites. It does not appear to be linked to any specific product(s), it can happen with any solution on either of these marketplaces.

Environment

eclipse-java-2023-12-R-macosx-cocoa-x86_64.dmg
with Marketplace Client 1.10.2.v20231116-1812
MacOS Monterey 12.6.6