There is a RELEASE_UPGRADE_IN_PROGRESS environmental variable which gets set to 1 when the release upgrade starts but it was check-new-release-gtk that presented the dialog so we'll need a different way to denote that a release upgrade is already happening.
There is a RELEASE_ UPGRADE_ IN_PROGRESS environmental variable which gets set to 1 when the release upgrade starts but it was check-new- release- gtk that presented the dialog so we'll need a different way to denote that a release upgrade is already happening.