AVRO-745. Fixed memory bug in bytes/string/fixed values. The avro_bytes_set function (and its string and fixed counterparts) are supposed to save a copy of the value, which the avro_datum_t instance takes full control over. Unfortunately, we were making that copy but then saving the original pointer, which would lead to a segfault when freeing the datum. Whoops...
avro/trunk/lang/c/src/datum.c
avro/trunk/lang/c/tests/test_avro_data.c