Discourse is an open source discussion platform. Prior to version 3.0.4 of the stable
branch and version 3.1.0.beta5 of the beta
and tests-passed
branches, multiple duplicate topics could be created if topic embedding is enabled. This issue is patched in version 3.0.4 of the stable
branch and version 3.1.0.beta5 of the beta
and tests-passed
branches. As a workaround, disable topic embedding if it has been enabled.