luci-mod-network: fix incorrectly reverting vlan device name

Fixes: #6435
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/modules/luci-mod-network/htdocs/luci-static/resources/tools/network.js b/modules/luci-mod-network/htdocs/luci-static/resources/tools/network.js
index 97bbf0ab5d..092bbbc14a 100644
--- a/modules/luci-mod-network/htdocs/luci-static/resources/tools/network.js
+++ b/modules/luci-mod-network/htdocs/luci-static/resources/tools/network.js
@@ -475,7 +475,7 @@ return baseclass.extend({
 			    vid = this.section.formvalue(section_id, 'vid'),
 			    name = this.section.getUIElement(section_id, 'name_complex');
 
-			if (base && vid && name && !name.isChanged()) {
+			if (base && vid && name && !name.isChanged() && isNew) {
 				name.setValue('%s.%d'.format(base, vid));
 				name.triggerValidation();
 			}