[ET Trac] [Einstein Toolkit] #1633: backport MoL revision 225

#1633: backport MoL revision 225 --------------------------+------------------------------------------------- Reporter: rhaas | Owner: Type: defect | Status: new Priority: minor | Milestone: Component: Other | Version: development version Keywords: MoL backport | --------------------------+------------------------------------------------- Before MoL did not initialize the RHS grid functions of the slow evolved variables to zero (but GRHydro did explicitly so this never showed up).

Revision 225 adds the initialization.