BUG: Fixed macro expansion bug that consumed new lines in nested macros

BUG: Fixed macro expansion bug that consumed new lines in nested macros

This was fixed by simply appending new lines to the start of the
expansion list when a nested macro is used.
This is not an ideal fix. The root cause of the macro going missing
surely is in another place, however this is a decent enough solution
for now. If the root cause of new lines being dropped in this case this
  commit should be reverted.