Error when shading package but not subpackage

[AlessandroPatti]

Shading the following classes

package org.experimental
class Value(kind: org.experimental.Kinds.Kind)
object Kinds { class Kind {} }

with these rules

rule org.experimental.** @0
rule org.** shaded.@0

causes the following error when trying to instantiate the shaded Value class

[error] Symbol 'term shaded.org.experimental' is missing from the classpath.
[error] This symbol is required by 'value org.experimental.Value.kind'.
[error] Make sure that term experimental is in your classpath and check for conflicting dependencies with `-Ylog-classpath`.
[error] A full rebuild may help if 'Value.class' was compiled against an incompatible version of shaded.org.
[error] class Verify { new Value(new Kinds.Kind) }
[error]                    ^
[error] one error found