test_expect_success "rename succeeded" "test_cmp expect .git/config"
+cat >> .git/config << EOF
+[branch "vier"] z = 1
+EOF
+
+test_expect_success "rename a section with a var on the same line" \
+ 'git config --rename-section branch.vier branch.zwei'
+
+cat > expect << EOF
+# Hallo
+ #Bello
+[branch "zwei"]
+ x = 1
+[branch "zwei"]
+ y = 1
+[branch "drei"]
+weird
+[branch "zwei"]
+ z = 1
+EOF
+
+test_expect_success "rename succeeded" "test_cmp expect .git/config"
+
cat >> .git/config << EOF
[branch "zwei"] a = 1 [branch "vier"]
EOF