[R-Forge #5888] getOrders timespan ignored when which.i == TRUE causing updateOrders to also ignore timespan

Submitted by: Jonathan Owen
Assigned to: Nobody
[R-Forge link](http://r-forge.r-project.org/tracker/index.php?func=detail&aid=5888&group_id=316&atid=1269)

Since getOrders ignores the timespan parameter when which.i = TRUE, and the updateOrders function sets which.i = TRUE, the timespan parameter passed to updateOrders is also being ignored.

The function ruleRevoke also calls updateOrders and may therefore also be impacted by this behavior (in this function a timespan parameter is used but the parameter doesn't appear to be passed to the function).

Start by tracing the R entry points getOrders, updateOrders, and ruleRevoke, focusing on how which.i and timespan are passed between them. Confirm the behavior for which.i = TRUE and verify whether ruleRevoke forwards its timespan value. Done means the requested timespan is honored through the affected call paths.

Written by the indexing model from the issue text.