diff -r dc5b0fee49df -r 44cf877b3d9f src/server/plugins/postgresql/pgtest.h
--- a/src/server/plugins/postgresql/pgtest.h	Sun May 01 11:14:47 2022 +0200
+++ b/src/server/plugins/postgresql/pgtest.h	Sun May 01 12:33:48 2022 +0200
@@ -104,6 +104,21 @@
             </D:set> \
         </D:propertyupdate>"
 
+#define PG_TEST_PROPPATCH2 "<?xml version=\"1.0\" encoding=\"utf-8\" ?> \
+        <D:propertyupdate xmlns:D=\"DAV:\" xmlns:X=\"http://example.com/\" xmlns:XA=\"http://example.com/a/\"> \
+            <D:set> \
+                <D:prop>\
+                    <XA:xtest>\
+                        <XA:elm>value</XA:elm>\
+                        <X:ex>example</X:ex>\
+                        <Z:nstest xmlns:Z=\"http://example.com/z\">\
+                            <Y:nstest2 xmlns:Y=\"http://example.com/y\"></Y:nstest2>\
+                        </Z:nstest>\
+                    </XA:xtest>\
+                </D:prop> \
+            </D:set> \
+        </D:propertyupdate>"
+
 #ifdef __cplusplus
 }
 #endif