fix: #877

Author: gbisurgi

src/editors/select.js

@@ -9,7 +9,7 @@ export class SelectEditor extends AbstractEditor {
     const haveToUseDefaultValue = !!this.jsoneditor.options.use_default_values || typeof this.schema.default !== 'undefined'
 
     if (
-      !this.enum_values.includes(sanitized) ||
+      (this.enum_options.length > 0 && !this.enum_values.includes(sanitized)) ||
       (initial && !this.isRequired() && !haveToUseDefaultValue)
     ) {
       sanitized = this.enum_values[0]