[fpc-devel]Possible TDbf bug and patch

[Jesus Reyes]

Hi, I think I found a bug in tdbf. One can scroll forward to the end
of the dataset, in the last record if one scrolls forward one more
time, the dataset enters the EOF state. The problem is that also the
first record of the buffer (because of how shifting buffers works)
gets incorrectly marked as invalid. As result, one cannot scroll
backwards anymore. I'm not well aware of dbf internals so please
check the patch, it did fix the problem for me.

Regards.

Jesus Reyes A.

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