Classi wysiwyg image upload does not insert in some cases

[ewohnlich]

BUG/PROBLEM REPORT (OR OTHER COMMON ISSUE)

What I did:

I tested on https://classic.demo.plone.org/ to ensure I had a vanilla environment and the latest bug release.

In the wysiwyg editor:

• Insert image
• select Upload tab
• Browse to and select a local file
• DO NOT click upload
• Click Insert

What I expect to happen:

Either a failure to upload and insert my image, because I didn't click Upload. Or, as a UX help, the image will be uploaded and inserted for me.

What actually happened:

The file was uploaded but not inserted. I suspect the code tries to help me out and upload the image for me even I though I didn't explicitly tell it to. A blank element was inserted, so my guess was it attempted to insert it as well but there's a bug.

What version of Plone/ Addons I am using: