Building with org.gradle.parallel=true fails due to resolving dependencies in other subprojects

[SquidDev]

Attempting to use recent versions of NeoGradle with parallel builds and multiple projects fails with the following error:

* What went wrong:
A problem occurred configuring root project 'mdk-example'.
> Could not determine the dependencies of null.
   > Current thread does not hold the state lock for project ':another'

This is a relatively recent regression — 7.0.133 works, while 7.0.137 fails — so I suspect this was introduced by #191.

Steps to reproduce

• Clone the MDK (tested at bfc7eb87a59b671a274dbb8d94aab28784beea8e).
• Add a new subproject (does not need to have NeoGradle installed), and a dependency on that project. I've included the full patch below.
• Run ./gradlew tasks --parallel to configure the project.

Changes.patch

diff --git a/another/build.gradle b/another/build.gradle
new file mode 100644
index 0000000..8c234a6
--- /dev/null
+++ b/another/build.gradle
@@ -0,0 +1,7 @@
+plugins {
+  id("java-library")
+}
+
+dependencies {
+ implementation "com.google.guava:guava:31.1-jre"
+}
diff --git a/build.gradle b/build.gradle
index 700db60..4e48e4d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
     id 'eclipse'
     id 'idea'
     id 'maven-publish'
-    id 'net.neoforged.gradle.userdev' version '7.0.133'
+    id 'net.neoforged.gradle.userdev' version '7.0.139'
 }
 
 version = mod_version
@@ -88,6 +88,7 @@ dependencies {
     // And its provides the option to then use net.minecraft as the group, and one of; client, server or joined as the module name, plus the game version as version.
     // For all intends and purposes: You can treat this dependency as if it is a normal library you would use.
     implementation "net.neoforged:neoforge:${neo_version}"
+    implementation project(":another")
 
     // Example optional mod dependency with JEI
     // The JEI API is declared for compile time use, while the full JEI artifact is used at runtime
diff --git a/gradle.properties b/gradle.properties
index a4a8575..16eacae 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,6 +2,7 @@
 org.gradle.jvmargs=-Xmx1G
 org.gradle.daemon=false
 org.gradle.debug=false
+org.gradle.parallel=true
 
 #read more on this at https://github.com/neoforged/NeoGradle/blob/NG_7.0/README.md#apply-parchment-mappings
 # you can also find the latest versions at: https://parchmentmc.org/docs/getting-started
diff --git a/settings.gradle b/settings.gradle
index ada876e..4434e83 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -9,3 +9,5 @@ pluginManagement {
 plugins {
     id 'org.gradle.toolchains.foojay-resolver-convention' version '0.8.0'
 }
+
+include(":another")

Full log output