Merge pull request #935 from mirumee/SALEOR-1756-error-when-trying-to-save-uncomplete-publish-date

Fix bug with uncomplete publish date

src/components/ChannelsAvailability/ChannelsAvailability.tsx

@@ -230,11 +230,11 @@ const Channel: React.FC<ChannelProps> = ({
                           )
                         : ""
                     }
-                    value={publicationDate ? publicationDate : ""}
+                    value={publicationDate || ""}
                     onChange={e =>
                       onChange(id, {
                         ...formData,
-                        publicationDate: e.target.value
+                        publicationDate: e.target.value || null
                       })
                     }
                     className={classes.date}