fixing pool prospect tests issue created by diff: D26552975
fixing pool prospect tests issue created by diff: D26552975

Summary:
The following shows the issue: https://fburl.com/testinfra/lbm77vvq
More context can be found in : https://fb.workplace.com/groups/1096600527141124/permalink/2179129095554923/

Reviewed By: lnicco

Differential Revision: D27336062

fbshipit-source-id: 73a8994e348d647b1ff4910c60cd647ff89b7335

facebook/wangle,facebook/wangle,facebook/wangle