I don't know if this helps, but the error seems to be dependent on the
column name 'email_sender' This is pretty weird...
s=metakit.storage()
fails = "t[url_hash:I,email_sender:S]"
works = "t[url_hash:I,pizza_sender:S]"
if 1:
struc = fails
else:
struc = works
v=s.getas(struc)
hv=s.getas('hv[_H:I,_R:I]')
v=v.hash(hv,1)
new_vals={'url_hash':1,
'email_sender':'A',
't':'A',}
print v.append(new_vals)
print v.append(new_vals)
print v.append(new_vals)
print v.append(new_vals)
print len(v)
metakit.dump(v)
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