remove redundant mark_safe calls
remove redundant mark_safe calls

render_to_string already returns a safestring

thenewguy/wagtail,wagtail/wagtail,zerolab/wagtail,thenewguy/wagtail,zerolab/wagtail,wagtail/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,thenewguy/wagtail,wagtail/wagtail,zerolab/wagtail,rsalmaso/wagtail,rsalmaso/wagtail,wagtail/wagtail,rsalmaso/wagtail,wagtail/wagtail,thenewguy/wagtail,thenewguy/wagtail,zerolab/wagtail,zerolab/wagtail