Merge branch 'master' into info-ui-observable

1 files changed, 1 insertions, 0 deletions

diff --git a/src/fields/DocSymbols.ts b/src/fields/DocSymbols.ts
index 9c563abbf..f8a57acd5 100644
--- a/src/fields/DocSymbols.ts
+++ b/src/fields/DocSymbols.ts
@@ -15,6 +15,7 @@ export const DocLayout = Symbol('DocLayout');
 export const DocFields = Symbol('DocFields');
 export const DocCss = Symbol('DocCss');
 export const DocAcl = Symbol('DocAcl');
+export const TransitionTimer = Symbol('DocTransitionTimer');
 export const DirectLinks = Symbol('DocDirectLinks');
 export const AclPrivate = Symbol('DocAclOwnerOnly');
 export const AclReadonly = Symbol('DocAclReadOnly');