Fix crash with Rubidium when using batching

- Backport fix from 1.18/next
- Downgrade and lock ForgeGradle version to fix build
- Update Forge to match 1.18/next
- Bump version

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -59,6 +59,7 @@ body:
             label: Mod Version
             description: The version of the mod you were using when the bug occured
             options:
+                - "0.6.5"
                 - "0.6.4"
                 - "0.6.3"
                 - "0.6.2"

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         maven { url = 'https://maven.parchmentmc.org' }
     }
     dependencies {
-        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: "${forgegradle_version}", changing: true
+        classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: "${forgegradle_version}", changing: false
         classpath "org.spongepowered:mixingradle:${mixingradle_version}"
         classpath "org.parchmentmc:librarian:${librarian_version}"
     }

gradle.properties

@@ -2,14 +2,14 @@ org.gradle.jvmargs = -Xmx3G
 org.gradle.daemon = false
 
 # mod version info
-mod_version = 0.6.4
+mod_version = 0.6.5
 artifact_minecraft_version = 1.18.2
 
 minecraft_version = 1.18.2
-forge_version = 40.1.60
+forge_version = 40.1.68
 
 # build dependency versions
-forgegradle_version = 5.1.+
+forgegradle_version = 5.1.53
 mixingradle_version = 0.7-SNAPSHOT
 mixin_version = 0.8.5
 librarian_version = 1.+

src/main/java/com/jozufozu/flywheel/backend/instancing/DrawBuffer.java

@@ -39,7 +39,10 @@ public class DrawBuffer {
 
 		VertexFormat format = parent.format();
 
-		int byteSize = format.getVertexSize() * vertexCount;
+		// Add one extra vertex to uphold the vanilla assumption that BufferBuilders have at least
+		// enough buffer space for one more vertex. Rubidium checks for this extra space when popNextBuffer
+		// is called and reallocates the buffer if there is not space for one more vertex.
+		int byteSize = format.getVertexSize() * (vertexCount + 1);
 
 		if (backingBuffer == null) {
 			backingBuffer = MemoryTracker.create(byteSize);