campaign_keyword first key is (re)set as undefined when first created #104
Description
This issue is to capture a bug reported by Yuri (mu2e). When editing using the GUI editor on a campaign bubble, if the campaign_keywords is empty initially and one adds one or more key-value pairs, and then closes the pop-up using "OK". The resulting JSON dictionary has the first (and only the first) keyword as "undefined" rather than what was set by the user.