testdata: seed sandbox clean child

roodboi · roodboi · commit affc90c3153b · 2026-03-25T14:53:22.000-04:00
diff --git a/_test_data/sandbox/clean/child.txt b/_test_data/sandbox/clean/child.txt
@@ -0,0 +1,2 @@
+clean stack: child branch
+purpose: child PR on top of sandbox-clean-base

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+clean stack: child branch`
	`2`	`+purpose: child PR on top of sandbox-clean-base`