View exception: 
Calling view: func_name="get_meta", method="GET", args="('10.5072_rwstg1k34n_2019723204918',)", kwargs="{'allowed_method_list': ['GET']}", url="/v2/meta/10.5072_rwstg1k34n_2019723204918"
Session subjects: CN=urn:node:mnTestRW,DC=dataone,DC=org, authenticatedUser, public
Calling view: func_name="get_meta", method="GET", args="('10.0309_rwstg1k34u_2019810194555',)", kwargs="{'allowed_method_list': ['GET']}", url="/v2/meta/10.0309_rwstg1k34u_2019810194555"
Session subjects: CN=urn:node:mnTestRW,DC=dataone,DC=org, authenticatedUser, public
Calling view: func_name="put_meta", method="PUT", args="()", kwargs="{'allowed_method_list': ['PUT']}", url="/v2/meta"
Session subjects: CN=urn:node:mnTestRW,DC=dataone,DC=org, authenticatedUser, public
Internal exception:
 Name: IntegrityError
 Value: duplicate key value violates unique constraint "app_scienceobject_obsoleted_by_id_key"
 DETAIL: Key (obsoleted_by_id)=(269) already exists.
 Args: <no args>
 TraceInfo:
 base.py(113)
 contextlib.py(74)
 external.py(388)
 sysmeta.py(133)
 sysmeta.py(528)
 revision.py(125)
 revision.py(411)
 base.py(741)
 base.py(779)
 base.py(851)
 base.py(900)
 query.py(760)
 compiler.py(1429)
 compiler.py(1100)
 utils.py(67)
 utils.py(76)
 utils.py(84)
 utils.py(89)
 utils.py(84)
 Type: <class 'django.db.utils.IntegrityError'>
 Value: duplicate key value violates unique constraint "app_scienceobject_obsoleted_by_id_key"