Setting SOURCE_DATE_EPOCH to zero causes errors during the python native package builds

[schoener-one]

Problem:
Setting the environment variable SOURCE_DATE_EPOCH conf/distro/sota.conf.inc to zero leads to python build errors for the native package builds, because the file timestamps of some packed files are set to a time before 1980. This causes the error output 'ZIP does not support timestamps before 1980' from the python zipfile.py script.

Solution:
Setting the SOURCE_DATE_EPOCH time to a time after 1980 fixed my problems.

Hint:
I was using the kirkstone branch!

[pattivacek]

Hello, this is unfortunately a known issue without a completely satisfactory solution yet, see #35.