Fixing dict for loop iterator to prevent value error when it has too many values to unpack.
Stack Trace:
Traceback (most recent call last):
File "/usr/bin/schema", line 95, in main
globals()[handler](context).run()
File "/usr/local/adnxs/schema-tool/schematool/command/up.py", line 67, in run
for (_, alter_id, _) in history:
ValueError: too many values to unpack
Fixing dict for loop iterator to prevent value error when it has too many values to unpack.
Stack Trace: