Media: clear inputs after cropping on attachment details screen.

Clear the crop selection input fields after the crop action is complete. 
Fixes unexpected re-cropping behavior if the crop button was clicked more than once.

Props davidbinda.
Fixes #30155.



git-svn-id: https://develop.svn.wordpress.org/trunk@49087 602fd350-edb4-49c9-b593-d223f7449a82

src/js/_enqueues/lib/image-edit.js

@@ -1007,6 +1007,10 @@
 			sel.fh = h;
 			this.addStep({ 'c': sel }, postid, nonce);
 		}
+
+		// Clear the selection fields after cropping.
+		$('#imgedit-sel-width-' + postid).val('');
+		$('#imgedit-sel-height-' + postid).val('');
 	},
 
 	/**