Image widget in admin is broken in 3.4.* versions

[pecheneff]

Steps to reproduce:

• open a widget which contains an image
• drag & drop another image to the widget

Expected result:

• Only new uploaded image is showing in the widget
• Buttons in the widget are functional

Actual result:

• New uploaded image is showing over the previous image
• Buttons in the widget are not clickable

Before upload:

After upload:

After saving a form and page refresh the new image is showing correctly.

Browser: Google Chrome
Reproduction rate: 5/5

[fsbraun]

@pecheneff I also see wrong markup after a first upload (clear the field and then drop an image into the widget):

• Only two buttons appear
• The "x" button is reduced to an unstyled "x" at the bottom of the widget.

Can you confirm this?

[pecheneff]

Yep. In my case only "x" is showing

[pecheneff]

@fsbraun btw we have one more issue with the image widget (not related to the 3.4.* version). When using the image field in inlines buttons are rendering outside the image widget's container.

[fsbraun]

@pecheneff Yes, got it. That's probably solved by setting the min-width: 340px for .filer-dropzone. The current 215px are too small.