Cannot expand macros through included org file

[reza <reza@housseini.me>]

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Hi List

I have the following setup:
In "template.org" is the structure of a report defined which I need to 
generate for several years, e.g:

   #+TITLE: Report

   * My headline

   #+BEGIN_SRC bash :file log_{{{year}}}.csv
     ./get_log_file --start={{{year}}}-01-01 --end={{{year}}}-12-31
   #+END_SRC

   #+BEGIN_SRC python
     log = pd.read_csv("log_{{{year}}}.csv")
   #END_SRC

Now I want to generate a report for different years, my approach was now 
to have a file "report_2019.org" like:

   #+TITLE: Report 2019
   #+MACRO: year 2019

   #+INCLUDE: "template.org" :lines "2-"


But that does not seem to work. It looks like the macro expansion does 
not happen for included content. Is this a bug or correct behavior, what 
would be the approach to not repeat the content for several reports?

Thanks for your inputs.

Cheers,
Reza

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