message: fix: value of documentation in completion list
diff: @@ -25,14 +25,11 @@ import {
  getNamedType,
  isAbstractType,
  isCompositeType,
  - isInputObjectType,
  isInputType,
  - isInterfaceType,
  isObjectType,
  GraphQLBoolean,
  GraphQLEnumType,
  GraphQLInterfaceType,
  - GraphQLObjectType,
  GraphQLSchema,
  SchemaMetaFieldDef,
  TypeMetaFieldDef,
  @@ -109,7 +106,7 @@ CodeMirror.registerHelper('hint', 'graphql', (editor, options) => {
  * Given GraphQLSchema, queryText, and context of the current position within
  * the source text, provide a list of typeahead entries.
  */
  -export function getAutocompleteSuggestions(
  +function getAutocompleteSuggestions(
  schema: GraphQLSchema,
  queryText: string,
  token: ContextTokenForCodeMirror,
  @@ -151,7 +148,7 @@ export function getAutocompleteSuggestions(
  argDefs.map(argDef => ({
  label: argDef.name,
  type: argDef.type,
  - documentation: argDef.description,
  + documentation: argDef.description ?? undefined,
  })),
  );
  }
  @@ -168,7 +165,7 @@ export function getAutocompleteSuggestions(
  objectFields.map(field => ({
  label: field.name,
  type: field.type,
  - documentation: field.description,
  + documentation: field.description ?? undefined,
  })),
  );
  }
  @@ -242,7 +239,7 @@ function getSuggestionsForFieldNames(
  fields.map(field => ({
  label: field.name,
  type: field.type,
  - documentation: field.description,
  + documentation: field.description ?? undefined,
  isDeprecated: field.isDeprecated,
  deprecationReason: field.deprecationReason,
  })),
  @@ -263,7 +260,7 @@ function getSuggestionsForInputValues(
  values.map(value => ({
  label: value.name,
  type: namedInputType,
  - documentation: value.description,
  + documentation: value.description ?? undefined,
  isDeprecated: value.isDeprecated,
  deprecationReason: value.deprecationReason,
  })),
  