Fix tags at the start of paragraphs (#4978)

Co-authored-by: Martin Haug <mhaug@live.de>

1 files changed, 7 insertions, 1 deletions

diff --git a/crates/typst/src/layout/inline/prepare.rs b/crates/typst/src/layout/inline/prepare.rs
index 9e73af66..3ac155b5 100644
--- a/crates/typst/src/layout/inline/prepare.rs
+++ b/crates/typst/src/layout/inline/prepare.rs
@@ -58,7 +58,13 @@ impl<'a> Preparation<'a> {
 
     /// Iterate over the items that intersect the given `sliced` range.
     pub fn slice(&self, sliced: Range) -> impl Iterator<Item = &(Range, Item<'a>)> {
-        let start = self.indices.get(sliced.start).copied().unwrap_or(0);
+        // Usually, we don't want empty-range items at the start of the line
+        // (because they will be part of the previous line), but for the first
+        // line, we need to keep them.
+        let start = match sliced.start {
+            0 => 0,
+            n => self.indices.get(n).copied().unwrap_or(0),
+        };
         self.items[start..].iter().take_while(move |(range, _)| {
             range.start < sliced.end || range.end <= sliced.end
         })