--- libyaml/src/api.c	2022-02-09 13:06:31.373103740 -0600
+++ yaml/src/api.c	2022-02-09 13:28:42.162132786 -0600
@@ -541,6 +541,18 @@
 }
 
 /*
+ * Set whether or not to indent block sequences in mapping context.
+ */
+
+YAML_DECLARE(void)
+yaml_emitter_set_indent_mapping_sequence(yaml_emitter_t *emitter, int indent_mapping_sequence)
+{
+    assert(emitter);    /* Non-NULL emitter object expected. */
+
+    emitter->indent_mapping_sequence = indent_mapping_sequence;
+}
+
+/*
  * Set the preferred line width.
  */
 
--- libyaml/src/emitter.c	2022-02-09 13:06:31.374103725 -0600
+++ yaml/src/emitter.c	2022-02-09 13:28:45.995087663 -0600
@@ -886,7 +886,9 @@
     if (first)
     {
         if (!yaml_emitter_increase_indent(emitter, 0,
-                    (emitter->mapping_context && !emitter->indention)))
+                    (emitter->mapping_context
+                             && !emitter->indent_mapping_sequence
+                             && !emitter->indention)))
             return 0;
     }
 
@@ -1825,6 +1827,7 @@
 
     emitter->whitespace = is_whitespace;
     emitter->indention = (emitter->indention && is_indention);
+    emitter->open_ended = 0;
 
     return 1;
 }
@@ -1977,6 +1980,10 @@
 
     emitter->whitespace = 0;
     emitter->indention = 0;
+    if (emitter->root_context)
+    {
+        emitter->open_ended = 1;
+    }
 
     return 1;
 }