Kepler

Now two patches to 2.2 exist: loader-2.1.1 and module-manager-gui-2.2.1.
If you launch 2.3.0 from the 2.3 app and attempt to use it to switch back to kepler-2.2, if you have not previously downloaded the patches mentioned above from within 2.2, 2.2 will fail to start on this initial attempt. The error on console is:
9/19/11 4:34:20 PM [0x0-0xfdafda].org.kepler.build.runner.Kepler³⁸⁵⁷⁰ [null] Error: The following modules are missing:
9/19/11 4:34:20 PM [0x0-0xfdafda].org.kepler.build.runner.Kepler³⁸⁵⁷⁰ [null] loader-2.1.1
9/19/11 4:34:20 PM [0x0-0xfdafda].org.kepler.build.runner.Kepler³⁸⁵⁷⁰ [null] module-manager-gui-2.2.1

A subsequent start up of the 2.3 app does what was supposed to happen the first time: start 2.2, immediately prompting you to download the two available patches.

During the Module Manager restart process something seems to have knowledge of remote patches and mistakenly assumes they've been downloaded.