[FIX] purchase_ux: Fix when seach using voucher in the context.
[FIX] purchase_ux: Fix when seach using voucher in the context.

closes ingadhoc/purchase#129

X-original-commit: 7b3f6d228d2f1b86932df018ea331807f8a2f35a
Signed-off-by: Nicolas Mac Rouillon <8d34fe7b7c65100e706828a8c0d03426900ffb59@adhoc.com.ar>

ingadhoc/purchase