diff options
Diffstat (limited to 'src/fields/util.ts')
| -rw-r--r-- | src/fields/util.ts | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/fields/util.ts b/src/fields/util.ts index e0b1843a1..47da7d7bf 100644 --- a/src/fields/util.ts +++ b/src/fields/util.ts @@ -77,10 +77,10 @@ const _setterImpl = action(function (target: any, prop: string | symbol | number if (writeToDoc) { if (value === undefined) { - delete target.__fieldKeys[prop]; + target.__fieldKeys && (delete target.__fieldKeys[prop]); delete target.__fields[prop]; } else { - target.__fieldKeys[prop] = true; + target.__fieldKeys && (target.__fieldKeys[prop] = true); target.__fields[prop] = value; } //if (typeof value === "object" && !(value instanceof ObjectField)) debugger; |