Pipeline compiles/deploys all static files to `STATIC_ROOT` on every petition with `DEBUG=True`

[kylebebak]

In the PIPELINE dict in settings, defining just one small group of stylesheets causes pipeline to deploy everything under STATICFILES_DIRS to STATIC_ROOT, on every petition. This happens working in development, where DEBUG = True.

It's as if pipeline were running collectstatic on every petition. As a test case, I configured it to read 6 css/less files, concat and minify them, and on every petition it deploys 1700 files to STATIC_ROOT. Shouldn't it read, compile, and minify only files that have changed since the last save?

[prokaktus]

Have this issue too with 1.6.8 version and DEBUG=True.