[path] Fix bug that occasionally caused relative paths to be missing the leading character

1 files changed, 2 insertions, 2 deletions

diff --git a/src/resolver/resolve_path.zig b/src/resolver/resolve_path.zig
index f7335a8b4..ca18f1f82 100644
--- a/src/resolver/resolve_path.zig
+++ b/src/resolver/resolve_path.zig
@@ -253,8 +253,8 @@ pub fn relativeToCommonPath(
     }
 
     if (normalized_to.len > last_common_separator + 1) {
-        const tail = normalized_to[last_common_separator + 1 ..];
-        const insert_leading_slash = tail[0] != separator;
+        const tail = normalized_to[last_common_separator..];
+        const insert_leading_slash = last_common_separator > 0 and normalized_to[last_common_separator - 1] != separator;
 
         if (insert_leading_slash) {
             buf[out_slice.len] = separator;