We are on Sharepoint online. I have a subsite. I created a site column for the category of documents that will be in the document library of the subsite.
I made the category column a choice column and I did not allow users to free type new entries. I deleted the default library, I dislike the url. I added a new document library. I went to library setting. There I added an existing site column, my category column.
Then I uploaded several dozen documents and tagged them using quick edit.
My choices are “Background”, “Technical Work” and “Outreach”.
Now I have files with metadata changing from “Background” to “;#Background;#”. The last modifier is listed as me. I did not make that change. The ;# version is not a choice. The logic of filter, sort, and group see it as different metadata, so files are not where they should be.
Any idea what is happening?