Crash when updating

Hi,

 From a crash report dump sent for TSVN for an update the attached stack
trace happened.

libsvn_wc\props.c, svn_wc__merge_props()
       to_val = incoming_change->value
         ? svn_string_dup(incoming_change->value, result_pool) : NULL;
....
       if (! from_val) /* adding a new property */
         SVN_ERR(apply_single_prop_add(state, &conflict_remains,
                                       db, local_abspath,
                                       left_version, right_version,
                                       is_dir, actual_props,
                                       propname, base_val, to_val,
                                       conflict_func, conflict_baton,
                                       dry_run, result_pool, iterpool));
and then in apply_single_prop_add():
...
       if (svn_string_compare(working_val, new_val))
crashes, because new_val is NULL.

the property is "svn:mergeinfo".

Could this happen if someone manually removes the svn:mergeinfo property
and then the next update (from another working copy) gets the to_val as
NULL?

Stefan

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