Update fileUpload.js

[pfmziota]

Corrected issue where the ID of the removed file stayed in the hidden input after removal.

[jankapunkt]

I actually peeked deeper into the functionality because this worked for a long time with no problems at all and I found that you were on the right track but did not fixed the cause of this issue.

The problem comes from the remove event:

'click [data-remove-file]'(e, template) {
  e.preventDefault();
  template.fileId.set(false);
  // template.data.value is not removed here :-S
  try {
    this.remove();
  } catch (error) {
    // we're good here
  }
  return false;
},

While the reactive variable is reset, the value property remains, causing the template to return the Id String to AutoForm but makes ImageFiles not find any Image related to the id (because the image has successfully been removed).

Suggested change:

'click [data-remove-file]'(e, template) {
  e.preventDefault();
  template.fileId.set(false);
  if (template.data.value) {
    delete template.data.value;
  }
  try {
    this.remove();
  } catch (error) {
    // we're good here
  }
  return false;
},

[pfmziota]

I'm sorry @jankapunkt , I did not have the time to do this in the last few days.
Here, I gladly made those changes.
The repository with the demo (mentioned in the issue #47 ) has also been updated and now uses my fork as a submodule so I can check that the changes I have made are working correctly.

I think it would be a good idea to implement unit tests.

[jankapunkt]

Thank you @pfmziota !

I think it would be a good idea to implement unit tests.

I already work on that an will provide a branch soon that will be merged tests are running.