Revision 1653988

Fix issue #4551 "svnrdump load commits wrong properties, or fails, on a
non-deltas dumpfile", by teaching the svnrdump loader to find the original
properties of a copied node at the copy source location.

* subversion/svnrdump/load_editor.c
  (ARE_VALID_COPY_ARGS): New macro.
  (directory_baton): Add copyfrom fields.
  (node_baton): Add a copyfrom URL field.
  (new_revision_record): Explicitly initialize 'rb->db', for clarity, now
    that we rely on it starting out as null.
  (push_directory): New function, factored out of new_node_record() and
    extended to store the copyfrom source of the directory.
  (new_node_record): Factor out the push_directory() functionality. Store
    the copyfrom URL separately from the copyfrom path. Move the variable
    'relpath_compose' into a tighter scope. Tweak comments.
  (remove_node_props): Look up the original properties in the copy source
    even if it is implicitly copied (in other words a child of a copy).

* subversion/tests/cmdline/svnrdump_tests.py
  (load_non_deltas_copy_with_props): Remove XFail marker. Extend.
  (load_non_deltas_replace_copy_with_props): Remove XFail marker. Extend
    a little.