Re: [PATCH 2/2] fill_textconv(): Don't get/put cache if sha1 is not valid

Kirill Smelkov [off-list ref] writes:

It turned out, under blame there are requests to fill_textconv() with
sha1=0000000000000000000000000000000000000000 and sha1_valid=0.

The code shouldn't even look at sha1[] if sha1_valid is false, as we do
not know the hash value for the blob (reading from the working tree).

Thanks.