Use the last block index in the file, in case the last data block als…

…o contains something that looks like a block index [asdf-format#989]
lgarrison · May 6, 2021 · fb6d00c · fb6d00c
1 parent dd16d15
commit fb6d00c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/asdf/block.py b/asdf/block.py
@@ -455,7 +455,7 @@ def read_block_index(self, fd, ctx):
         # Read blocks in reverse order from the end of the file
         while True:
             # Look for the index header
-            idx = content.find(constants.INDEX_HEADER)
+            idx = content.rfind(constants.INDEX_HEADER)
             if idx != -1:
                 content = content[idx:]
                 index_start = block_start + idx