* keep unsafe .. unsafe
fixes#23734, which was broken in previous fix that allowed non string types to be templated
use new 'is_template' function vs bastardizing others
refactored clean_data to allow for arbitrary data structures to clean
fixed/removed some tests
* deal with complex data for is_template
* typos
Copy module was walking over files in subdirectories repeatedly (a
directory tree a few levels deep could bring the time spent into the
tens of minutes)
This was traced to the fix for this bug report: https://github.com/ansible/ansible/issues/13013Fixed#13013 a different way and added an integration test to check for
regressions of #13013 as we optimize this code.
Fixes#21513