diff --git a/modules/store/src/main/scala/docspell/store/impl/Column.scala b/modules/store/src/main/scala/docspell/store/impl/Column.scala
index 2357664b..87253163 100644
--- a/modules/store/src/main/scala/docspell/store/impl/Column.scala
+++ b/modules/store/src/main/scala/docspell/store/impl/Column.scala
@@ -32,7 +32,7 @@ case class Column(name: String, ns: String = "", alias: String = "") {
   def is[A: Put](ov: Option[A]): Fragment =
     ov match {
       case Some(v) => f ++ fr" = $v"
-      case None    => fr"is null"
+      case None    => f ++ fr"is null"
     }
 
   def is(c: Column): Fragment =
diff --git a/modules/store/src/main/scala/docspell/store/records/RTag.scala b/modules/store/src/main/scala/docspell/store/records/RTag.scala
index 71b7b1f0..e0c1a56a 100644
--- a/modules/store/src/main/scala/docspell/store/records/RTag.scala
+++ b/modules/store/src/main/scala/docspell/store/records/RTag.scala
@@ -69,7 +69,7 @@ object RTag {
     val sql = selectCount(
       tid,
       table,
-      and(cid.is(tag.collective), name.is(tag.name), category.is(tag.category))
+      and(cid.is(tag.collective), name.is(tag.name))
     )
     sql.query[Int].unique.map(_ > 0)
   }
diff --git a/modules/webapp/src/main/elm/Comp/DetailEdit.elm b/modules/webapp/src/main/elm/Comp/DetailEdit.elm
index 12efb8a4..5330da9c 100644
--- a/modules/webapp/src/main/elm/Comp/DetailEdit.elm
+++ b/modules/webapp/src/main/elm/Comp/DetailEdit.elm
@@ -300,12 +300,20 @@ update flags msg model =
             )
 
         SubmitResp (Ok res) ->
+            let
+                ret =
+                    if res.success then
+                        Just (makeValue model.form)
+
+                    else
+                        Nothing
+            in
             ( { model
                 | result = Just res
                 , submitting = False
               }
             , Cmd.none
-            , Just (makeValue model.form)
+            , ret
             )
 
         SubmitResp (Err err) ->