[taler-docs] branch master updated: address /pay documentation for #6952

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grothoff pushed a commit to branch master
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The following commit(s) were added to refs/heads/master by this push:
     new a7dd26c  address /pay documentation for #6952
a7dd26c is described below

commit a7dd26c4987f645a99c80d9c6771eac6dd807190
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sat Apr 8 09:58:54 2023 +0200

    address /pay documentation for #6952
---
 core/api-merchant.rst | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/core/api-merchant.rst b/core/api-merchant.rst
index 6c74e00..e11744a 100644
--- a/core/api-merchant.rst
+++ b/core/api-merchant.rst
@@ -252,9 +252,11 @@ Making the payment
     The backend took too long to process the request. Likely the merchant's 
connection
     to the exchange timed out. Try again.
   :http:statuscode:`409 Conflict`:
-    The exchange rejected the payment because a coin was already spent, or
+    The exchange rejected the payment because a coin was already spent (or
+    used in a different way for the same purchase previously), or
     the merchant rejected the payment because the order was already fully paid
-    (and then return signatures with refunds). If a coin was already spent,
+    (and then return signatures with refunds). If a coin was already spent
+    (this includes re-using the same coin after a refund),
     the response will include the ``exchange_url`` for which the payment 
failed,
     in addition to the response from the exchange to the ``/batch-deposit`` 
request.
   :http:statuscode:`410 Gone`:

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