Adapt doesn't store textual answers. There isn't enough space in the SCORM spec to store plain text and all of the question states etc. The **** asterix just represents an incorrect answer. If you get the answer correct it will use the listed correct answer from the json, it is not restoring the user's input answer.
See code: https://github.com/adaptlearning/adapt-contrib-textInput/blob/a64d3120448f630eb6b5a9d85c8a25e11c99f2fe/js/textInputModel.js#L36-L60