Dependencies between modules defined in Pluto cause infinite recalculation

[freetopos]

While defining Julia modules inside Pluto notebooks and stumbled upon this bug:

Steps to reproduce:

1. In a Pluto notebook, define 3 modules (A, B and C), each in its own cell
2. Add module A to B with using ..A
3. Add module A to C with using ..A

This will cause the cells defining B and C to be recalculated "infinitely". More precisely, the notebook eventually crashes with a stack overflow.

Video

pluto_bug.mp4

As a workaround, I've been using the import keyword, which doesn't seem to cause the same issue.

[Pangoraw]

Thank you for the detailed report!