Relays vastly underreport write-total in padding-counts line in extrainfo descriptor

Here is a snippet from WhatsGoingOn's extrainfo descriptor:

write-history 2019-01-27 18:10:06 (86400 s) 7709989888,6911394816,6582383616,7393989632,6065009664
read-history 2019-01-27 18:10:06 (86400 s) 7644498944,6824735744,6550761472,7355173888,6059125760
[...]
padding-counts 2019-01-27 22:06:23 (86400 s) bin-size=10000 write-drop=0 write-pad=220000 write-total=250000 read-drop=0 read-pad=210000 read-total=12310000 enabled-read-pad=10000 enabled-read-total=20000 enabled-write-pad=10000 enabled-write-total=10000 max-chanpad-timers=6

Notice how the read-total is reasonable compared to read-history, but the write-total is way undercounting compared to write-history.

I suspect that write-total is the wrong one.