Reset history to mutable in .arcconfig

Summary: Reset history to mutable (summary)

Test Plan: none

Reviewers: DDRKirbyISQ

Differential Revision: http://phab.local/D13
Reset history to mutable in .arcconfig

Summary: Reset history to mutable (summary)

Test Plan: none

Reviewers: DDRKirbyISQ

Reviewed By: DDRKirbyISQ

Differential Revision: http://phab.local/D13
Reset history to mutable in .arcconfig

Summary: Reset history to mutable (summary)

Test Plan: none

Reviewers: DDRKirbyISQ

Reviewed By: DDRKirbyISQ

Differential Revision: http://phab.local/D13