This is a workaround for fixup when objects has internal invalid properties, since we do not want to extend the general error display before replace the json form.

See merge request nexedi/slapos.core!460

See merge request nexedi/slapos.core!461

See merge request !458

Capture either stdout, stderr or both separately using select.poll
to handle timeouts and multiplex the reads in the current thread.

In Python 3, a separate thread is not needed to log output in realtime.
See discussion in !319 for more details.

This partly reverts commit 86ce8b8e.

See merge request nexedi/slapos.core!456

   This change is required to overwrite (remove) roles from Query portal type, since by default it may contains an role from erp5_base bt5.

It is not used

It does not seem used.

See merge request nexedi/slapos.core!457

Base_acceptContractInvitation is an infinite loop

  This business template isnt used for severl years, and dont contains compatible code.

See merge request nexedi/slapos.core!454