As one test I changed the Regional Format to "English (Denmark)" so that numbers are 1.234.567,89 and then upgraded to yakkety using DistUpgradeViewGtk3. I did not encounter a crash.
bdmurray@clean-xenial-amd64:~$ env | grep LC_ LC_PAPER=en_DK.UTF-8 LC_ADDRESS=en_DK.UTF-8 LC_MONETARY=en_DK.UTF-8 LC_NUMERIC=en_DK.UTF-8 LC_TELEPHONE=en_DK.UTF-8 LC_IDENTIFICATION=en_DK.UTF-8 LC_MEASUREMENT=en_DK.UTF-8 LC_CTYPE=en_US.UTF-8 LC_TIME=en_DK.UTF-8 LC_NAME=en_DK.UTF-8
As one test I changed the Regional Format to "English (Denmark)" so that numbers are 1.234.567,89 and then upgraded to yakkety using DistUpgradeView Gtk3. I did not encounter a crash.
bdmurray@ clean-xenial- amd64:~ $ env | grep LC_ en_DK.UTF- 8 en_DK.UTF- 8 en_DK.UTF- 8 en_DK.UTF- 8 en_DK.UTF- 8 ON=en_DK. UTF-8 en_DK.UTF- 8 en_US.UTF- 8
LC_PAPER=
LC_ADDRESS=
LC_MONETARY=
LC_NUMERIC=
LC_TELEPHONE=
LC_IDENTIFICATI
LC_MEASUREMENT=
LC_CTYPE=
LC_TIME=en_DK.UTF-8
LC_NAME=en_DK.UTF-8