void
InteropMetadataDialog::content_version_changed ()
{
- film()->set_content_versions ({ wx_to_std(_content_version->GetValue()) });
+ auto version = wx_to_std(_content_version->GetValue());
+ if (version.empty()) {
+ film()->set_content_versions({});
+ } else {
+ film()->set_content_versions({version});
+ }
}