Description of problem:

When creating a new custom migration target or editing an existing one, uploading image with a size greater than 1Mb disables Create/Save button

Version-Release number of selected component (if applicable):

mta-operator-bundle-container-7.0.0-15

How reproducible:

100%

Steps to Reproduce:

1. Go to Administration -> Custom migration targets
2. Press "Create new"
3. Fill in the required data: Name and Custom rules -> the "Create" button is enabled
4. Upload an image file with a size greater than 1Mb

Actual results:

An appropriate message about the image size is displayed, but the Create button is disabled

Expected results:

The Create/Save button remains enabled since the image is still the default one

Workaround:

onBlur event (any click) makes the "Create" button enabled