Spurious duplicated import warning

[radeusgd]

While working on #12357 I've found a situation where the compiler is reporting a spurious warning.

The minimal patch I've found to reproduce it is:

diff --git a/distribution/lib/Standard/Table/0.0.0-dev/src/Foo.enso b/distribution/lib/Standard/Table/0.0.0-dev/src/Foo.enso
new file mode 100644
--- /dev/null	(date 1740646706287)
+++ b/distribution/lib/Standard/Table/0.0.0-dev/src/Foo.enso	(date 1740646706287)
@@ -0,0 +1,3 @@
+from project.Column import apply_unary_operation, naming_helper
+
+foo = [Column, apply_unary_operation, naming_helper]

Running buildEngineDistribution yields the following warning:

...
[info] Generating index for built-distribution\enso-engine-0.0.0-dev-windows-amd64\enso-0.0.0-dev\lib\Standard\Table
X:\NBO\enso\built-distribution\enso-engine-0.0.0-dev-windows-amd64\enso-0.0.0-dev\lib\Standard\Table\0.0.0-dev\src\Foo.enso:1:1: warning: Duplicated import of naming_helper. The original import is 'from Standard.Table.Column import apply_unary_operation, naming_helper' in Foo.enso[1:1-1:63].
    1 | from project.Column import apply_unary_operation, naming_helper
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Obviously the import is not duplicated - if I comment it out or remove one of the two imported names this results in compiler error, e.g.
changing to

from project.Column import apply_unary_operation

foo = [apply_unary_operation, naming_helper]

yields

X:\NBO\enso\built-distribution\enso-engine-0.0.0-dev-windows-amd64\enso-0.0.0-dev\lib\Standard\Table\0.0.0-dev\src\Foo.enso:3:31: error: The name `naming_helper` could not be found.
    3 | foo = [apply_unary_operation, naming_helper]
      |                               ^~~~~~~~~~~~~

[radeusgd]

Apparently the workaround seems to be to rewrite the imports to

import project.Column.apply_unary_operation
import project.Column.naming_helper

foo = [apply_unary_operation, naming_helper]

and then the warning disappears.

[radeusgd]

Interestingly, I was trying to create and run a project with similar layout for smaller repro, but couldn't get that warning.

The only combination I've found is the above - adding these 2 imports in the Standard.Table project and compiling it with buildEngineDistribution.

[enso-bot]

Pavel Marek reports a new STANDUP for today (2025-03-20):

Progress: - Quickfix for transient caused by relying on an external service - #12577

• Simple fix for Spurious duplicated import warning #12376 in Fix spurious import warning #12578
• Small fix: Fail if projdir in --in-project doesnt exist - Ensure project dir exist when using --docs cmdline #12581
• Reopened Rolling policy of log files based on executions rather than file size #11657 - Rolling policy of log files based on executions rather than file size #11657 (comment)
• Add docs for telemetry - Add docs for telemetry #12582
• Fix spurious import warning error in Fix spurious import warning #12578 It should be finished by 2025-03-21.