Issue

	- Runbot 13.0
	- Website > Contact Form
	- Double click on send button

	Link dialog opened, ok

	- Discard
	- Double click on send button
	- Click link button

	Traceback

Cause

	The next double click doesn't work
	because in rte.js RTEWidget._onMousedown
	we remove the target's contenteditable
	attribute and it's never added back.

	This is because we break if the element
	is not editable.

	The traceback is a side effect,
	since we can't select the button
	anymore, our selection is incorrect
	and getLinkInfo use range.create()
	try to use it.

Solution

	Break only if the target is not
	a '<a>' & non-editable element

OPW-2268595

closes odoo/odoo#54221

X-original-commit: 460bc102
Signed-off-by: Nicolas Lempereur (nle) <nle@odoo.com>
Signed-off-by: Jason Van Malder (jvm) <jvm@odoo.com>