Memory issue observed on CRAN

[mattfidler]

https://www.stats.ox.ac.uk/pub/bdr/memtests/valgrind/rxode2/tests/testthat.Rout

The offending code is here:

==1579489== Conditional jump or move depends on uninitialised value(s)
==1579489==    at 0x171DBA42: range_i32 (/tmp/RtmpcKmiav/R.INSTALL11a1932f6cfebb/data.table/src/forder.c:156)
==1579489==    by 0x171DBA42: forder (/tmp/RtmpcKmiav/R.INSTALL11a1932f6cfebb/data.table/src/forder.c:552)
==1579489==    by 0x171DE927: forderReuseSorting (/tmp/RtmpcKmiav/R.INSTALL11a1932f6cfebb/data.table/src/forder.c:1741)

I didn't see this posted anywhere so I posted this for your awareness. I will be replying to CRAN that I have raised this issue when I resubmit.

nlmixr2/rxode2#795

In general I am following the suggestion by @MichaelChirico here and is found in my repo here

Unfortunately CRAN's valgrind environment has always been a mystery to me. I did not see the issues on my end when I ran valgrind.

[mattfidler]

I found the issue. Thank you for your patience with my spam.