what's the meaning of the numbers in CHANGELOG?

hi all

I heard that svn1.4 has been released and I want to know exactly what
the changes is. So I read the CHANGELOG and found some numbers . For
example :
- large file commit speedups (r17861 -73 18867 -918 -29 -44 -45 -48 -49)

I think the "r17861" may refer to "the log of revision 17861". What's
the meaning of -73 behind r17861 . And what's 18867, and -918?

thanks.

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Received on Mon Sep 11 16:38:23 2006