Images with special characters in the filename embedded from another page not present in HTML export

If you insert images into a page that are attached to another page and the filename contains space or comma for example, will not be exported as a part of a HTML export.

Steps to reproduce

1. Create a page, attach two images to it, one of the images having space in its filename, save the page
2. Create another page, go to Insert > Image > Search and search for the images attached to the previously created page
3. Insert both images on the page
4. Go to Space Tools > Export > HTML Export > Custom Export, select the page with the images embedded from the other page
5. Notice that the exported page will only have the image with no spaces in the filename displayed

Workaround

• Attach the images directly to the page that is to be exported
• Rename the files so that they do not contain any special characters (comma, space, etc) and embed them like that