From 6de14570d6f357e1e6cbd3f83336e8bc31cba873 Mon Sep 17 00:00:00 2001
From: Belleve <belleve@typeof.net>
Date: Thu, 12 Sep 2024 19:37:32 -1000
Subject: [PATCH] Fix build break (stack overflow) for no-cv-ss building
 (#2500)

---
 .github/workflows/pr-build-validation.yml | 2 +-
 build-plans.toml                          | 7 +++++++
 packages/glyph/src/glyph.mjs              | 2 +-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/pr-build-validation.yml b/.github/workflows/pr-build-validation.yml
index 5474c726d..b069ee35e 100644
--- a/.github/workflows/pr-build-validation.yml
+++ b/.github/workflows/pr-build-validation.yml
@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        fontName: ["Iosevka", "IosevkaSlab", "IosevkaAile", "IosevkaEtoile"]
+        fontName: ["Iosevka", "IosevkaSlab", "IosevkaAile", "IosevkaEtoile", "IosevkaNoVarTest"]
 
     steps:
       # Checkout repository into `iosevka` sub directory
diff --git a/build-plans.toml b/build-plans.toml
index 9d4e6b699..f04ce4ba3 100644
--- a/build-plans.toml
+++ b/build-plans.toml
@@ -875,6 +875,13 @@ shape = 700
 menu = 700
 css = 700
 
+[buildPlans.IosevkaNoVarTest]
+family = "IosevkaNoVarTest"
+spacing = "normal"
+serifs = "sans"
+noCvSs = true
+exportGlyphNames = false
+
 ###################################################################################################
 # Collect plans
 
diff --git a/packages/glyph/src/glyph.mjs b/packages/glyph/src/glyph.mjs
index e80fcea9e..12730021b 100644
--- a/packages/glyph/src/glyph.mjs
+++ b/packages/glyph/src/glyph.mjs
@@ -145,7 +145,7 @@ export class Glyph {
 
 	tryBecomeMirrorOf(dst, rankSet) {
 		if (rankSet.has(this) || rankSet.has(dst)) return;
-		if (dst.hasDependency(this)) return;
+		if (this === dst || dst.hasDependency(this)) return;
 		const csThis = Geom.hashGeometry(this.geometry);
 		const csDst = Geom.hashGeometry(dst.geometry);
 		if (csThis && csDst && csThis === csDst) {