(unchain_marker): Allow differing buffers

as long as they have the same text.

1 files changed, 3 insertions, 2 deletions

diff --git a/src/marker.c b/src/marker.c
index df67a8477a1..957510a9bde 100644
--- a/src/marker.c
+++ b/src/marker.c
@@ -220,8 +220,9 @@ unchain_marker (marker)
               BUF_MARKERS (b) = next;
               /* Deleting first marker from the buffer's chain.  Crash
                  if new first marker in chain does not say it belongs
-                 to the same buffer (or one of its indirect buffers).  */
-              if (!NILP (next) && b != XMARKER (next)->buffer)
+                 to the same buffer, or at least that they have the same
+                 base buffer.  */
+              if (!NILP (next) && b->text != XMARKER (next)->buffer->text)
                 abort ();
             }
           else