Backport fix for multiple dependency race conditions to Poetry 1.8

[OfficiallySomeGuy]

Description

We're seeing issues with a race conditions when referencing two dependencies from the same Git repository.

This seems to have been previously reported in this issue resolved in #9658 here -- however it does not seem that these commits made it to the latest Poetry 1.x release (at time of writing, Poetry 1.8).

It is likely that others who have not yet upgraded to Poetry 2.x will see this issue also -- this issue requests the creation of a new maintenance release of Poetry 1.8 containing the commits by @radoering in #9658.

Workarounds

Currently we disable parallelism in Poetry, which has a significant negative impact on build time.

Poetry Installation Method

pip

Operating System

MacOS

Poetry Version

Poetry (version 1.8.5)

Poetry Configuration

N/A

Python Sysconfig

N/A

Example pyproject.toml

Poetry Runtime Logs

N/A

[OfficiallySomeGuy]

Opened #10476 -- but not sure that's the right way to do this -- feel free to close and do another way if preferred!

[Secrus]

We are no longer developing 1.* branch. You should move to Poetry 2.*

[OfficiallySomeGuy]

@Secrus as the upgrade to 2.x is a breaking change, it will take us some time to change our tooling to support the new version.

Given that Poetry 2.x was released 6 months ago, is there any chance of making a maintenance release of 1.8 to resolve this issue given it results in severe quality-of-life issues on this version?