Image lock ratio, unlocked when caret moved from image url field

[Krzysztof Studnik]

When editing image width and heigh, prior to entering image URL, Image Lock ratio is disabled after enetering URL.

TC

Open Image dialog (image lock is set to LOCKED, as default)

• set width to 1
• set height to 1
• enter image url, press Tab to set focus in next textbox

Expected

No change should be made to LOCK ratio.

Actual

LOCK unlocks itself

My opinion:
While entering image dimensions, without first inserting image url (empty url box), preview in Image dialog should work like with wrong url entered.

[Jakub Ś]

This happens only if you enter false URL - not leading to an image E.g. ​http://192.168.1.100/

If you enter correct URL ​http://192.168.1.100/b.jpg everything works fine.

After consulting the results with @krst, we have decided to close the ticked as invalid.