51aef9631658a9ec173d7c5aa8989738ae4a71ba
braney
  Thu Oct 7 17:01:53 2021 -0700
add a fix to a bug where liftOver elements with zero size that did *not*
fit into a chain were flagges as an error rather than just marked as
missing

diff --git src/hg/liftOver/tests/expected/zeroWidth.bed src/hg/liftOver/tests/expected/zeroWidth.bed
new file mode 100644
index 0000000..ba63617
--- /dev/null
+++ src/hg/liftOver/tests/expected/zeroWidth.bed
@@ -0,0 +1,21 @@
+chr13	48001072	48001073	2
+chr13	48001073	48001074	3
+chr13	48001071	48001072	5
+chr13	48001071	48001072	6
+chr13	48001072	48001073	8
+chr1	145842813	145842814	12
+chr1	145842812	145842813	13
+chr1	145842811	145842812	14
+chr1	145842813	145842814	16
+chr1	145842812	145842813	17
+chr1	145842811	145842812	18
+#Deleted in new
+chr13	86806387	86806387	1
+#Deleted in new
+chr13	48575207	48575207	4
+#Deleted in new
+chr13	48575207	48575208	7
+#Deleted in new
+chr1	145592294	145592295	11
+#Deleted in new
+chr1	145592294	145592294	15