Fix generating reports if no week given unix_week() cannot handle week being None but does so for year. It just assumes the current year in this case, although this only duplicates the initialisation of year with c_year in this context. week being None gives TypeError: unsupported operand type(s) for -: 'NoneType' and 'int' load_entries() handles the case with no week given, thus call it anyhow. This fix makes it possible to invoke scripts/getan-report with a year given but no week and seeing the expected result (data for a whole year) instead of a traceback.

{% for proj in projects %}
{%- if proj.entries %}
# project: {{ proj.key }} ({{ proj.desc }})
{% for entry in proj.entries|sort(attribute='start') -%}
{{ entry.start|date_format}} {{ (entry.get_duration()|human_time).rjust(5) }}h ? {{ user.ljust(3) }} [{{ entry.get_workpackage() }}] {{ entry.get_comment() }}
{% endfor -%}
# total: {{ proj.get_total_duration()|human_time }}h
{% endif -%}
{% endfor %}
# total all projects: {{ total_time|human_time }}h