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Julian Foad wrote:
[..]
> It would be great if you could trace the calls back to wherever the
> non-canonical paths are generated, and fix them at that point.

Thank you Julian, for the comments. Attached herewith is the patch to
canonicalize the URLs. If this seems fine, I shall send the patch to
upgrade ..add_component() to ..add_component2().

[[[
Log:
Ensure the URLs are canonical before passing to the new
`svn_path_url_add_component2()'.

[ in subversion/libsvn_ra_neon ]

* commit.c
  (checkout_resource): Canonicalize the 'BASE' as
  `svn_path_url_add_component2()' won't handle it.

* props.c
  (svn_ra_neon__get_baseline_info, svn_ra_neon__get_one_prop): Same.

* options.c
  (svn_ra_neon__exchange_capabilities): Same.

Found by: stsp
Suggested by: stsp,julianfoad
Patch by: Kannan R <kann...@collab.net>
]]]

- --
Thanks & Regards,
Kannan
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Index: subversion/libsvn_ra_neon/commit.c
===================================================================
--- subversion/libsvn_ra_neon/commit.c	(revision 890793)
+++ subversion/libsvn_ra_neon/commit.c	(working copy)
@@ -518,7 +518,7 @@
                                _("Unable to parse URL '%s'"), locn);
     }
 
-  rsrc->wr_url = apr_pstrdup(rsrc->pool, parse.path);
+  rsrc->wr_url = svn_uri_canonicalize(parse.path, rsrc->pool);
   ne_uri_free(&parse);
 
   return SVN_NO_ERROR;
Index: subversion/libsvn_ra_neon/props.c
===================================================================
--- subversion/libsvn_ra_neon/props.c	(revision 890793)
+++ subversion/libsvn_ra_neon/props.c	(working copy)
@@ -619,6 +619,7 @@
   ne_propname props[2] = { { 0 } };
   const char *name;
   const svn_string_t *value;
+  svn_string_t *canonicalized_baseline_url;
 
   props[0] = *propname;
   SVN_ERR(svn_ra_neon__get_props_resource(&rsrc, sess, url, label, props,
@@ -634,7 +635,12 @@
                                name, url);
     }
 
-  *propval = value;
+  canonicalized_baseline_url = svn_string_create(svn_uri_canonicalize
+                                                 (value->data,
+                                                  pool),
+                                                 pool);
+
+  *propval = canonicalized_baseline_url;
   return SVN_NO_ERROR;
 }
 
@@ -959,7 +965,7 @@
 {
   svn_ra_neon__resource_t *baseline_rsrc, *rsrc;
   const svn_string_t *my_bc_url;
-  svn_string_t my_bc_rel;
+  svn_string_t my_bc_rel, *canonicalized_bc_url;
 
   /* Go fetch a BASELINE_RSRC that contains specific properties we
      want.  This routine will also fill in BC_RELATIVE as best it
@@ -989,9 +995,12 @@
                                 "on the baseline resource"));
     }
 
+  canonicalized_bc_url = svn_string_create(svn_uri_canonicalize(my_bc_url->data,
+                                                                pool), pool);
+
   /* maybe return bc_url to the caller */
   if (bc_url)
-    *bc_url = *my_bc_url;
+    *bc_url = *canonicalized_bc_url;
 
   if (latest_rev != NULL)
     {
Index: subversion/libsvn_ra_neon/options.c
===================================================================
--- subversion/libsvn_ra_neon/options.c	(revision 890793)
+++ subversion/libsvn_ra_neon/options.c	(working copy)
@@ -294,7 +294,7 @@
       goto cleanup;
     }
 
-  ras->act_coll = apr_pstrdup(ras->pool, oc.activity_coll->data);
+  ras->act_coll = svn_uri_canonicalize(oc.activity_coll->data, ras->pool);
   parse_capabilities(req->ne_req, ras, pool);
 
  cleanup:

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