clean up config values

Author: bernardodemarco

ui/src/views/setting/ConfigurationValue.vue

@@ -275,6 +275,15 @@ export default {
       if (configrecord.type === 'WhitespaceSeparatedListWithOptions') {
         newValue = newValue.join(' ')
       }
+
+      // The updateConfiguration API expects a blank string to clean up the configuration value
+      if (
+        (['CSV', 'Order', 'WhitespaceSeparatedListWithOptions'].includes(configrecord.type) && Object.keys(newValue).length === 0) ||
+        (configrecord.type === 'String' && newValue.length === 0)
+      ) {
+        newValue = ' '
+      }
+
       const params = {
         [this.scopeKey]: this.$route.params?.id,
         name: configrecord.name,
@@ -362,6 +371,17 @@ export default {
         }
         return 0
       }
+
+      if (configrecord.value?.trim().length === 0) {
+        if (['CSV', 'Order', 'WhitespaceSeparatedListWithOptions'].includes(configrecord.type)) {
+          return []
+        }
+
+        if (configrecord.type === 'String') {
+          return ''
+        }
+      }
+
       if (['Order', 'CSV'].includes(configrecord.type)) {
         if (configrecord.value && configrecord.value.length > 0) {
           return String(configrecord.value).split(',')