From daae1d3561aeaee1a1ab6d1ef185c1aa85ceec69 Mon Sep 17 00:00:00 2001
From: Dan King <dking@broadinstitute.org>
Date: Tue, 31 Jan 2023 17:11:31 -0500
Subject: [PATCH] revert change to global seed

---
 hail/python/hail/context.py              |  5 ++---
 hail/python/test/hail/test_randomness.py | 16 ++++++++--------
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/hail/python/hail/context.py b/hail/python/hail/context.py
index 61009e267b9d..3d6f2531f62f 100644
--- a/hail/python/hail/context.py
+++ b/hail/python/hail/context.py
@@ -116,11 +116,10 @@ def __init__(self, log, quiet, append, tmpdir, local_tmpdir, global_seed, backen
                                  '  the latest changes weekly.\n')
             sys.stderr.write(f'LOGGING: writing to {log}\n')
 
+        self._user_specified_rng_nonce = True
         if global_seed is None:
-            self._user_specified_rng_nonce = False
-            backend.set_flags(rng_nonce=str(Random().randrange(-2**63, 2**63 - 1)))
+            backend.set_flags(rng_nonce=str(0))
         else:
-            self._user_specified_rng_nonce = True
             backend.set_flags(rng_nonce=str(global_seed))
         Env._hc = self
 
diff --git a/hail/python/test/hail/test_randomness.py b/hail/python/test/hail/test_randomness.py
index f5eb501c1b79..fcafee376840 100644
--- a/hail/python/test/hail/test_randomness.py
+++ b/hail/python/test/hail/test_randomness.py
@@ -64,16 +64,16 @@ def test_matrix_table_entries():
     mt = hl.utils.range_matrix_table(5, 2)
     mt = mt.annotate_entries(x = hl.rand_int32(5))
     expected = [
-        hl.Struct(row_idx=0, col_idx=0, x=1),
-        hl.Struct(row_idx=0, col_idx=1, x=2),
+        hl.Struct(row_idx=0, col_idx=0, x=0),
+        hl.Struct(row_idx=0, col_idx=1, x=3),
         hl.Struct(row_idx=1, col_idx=0, x=2),
-        hl.Struct(row_idx=1, col_idx=1, x=3),
-        hl.Struct(row_idx=2, col_idx=0, x=0),
+        hl.Struct(row_idx=1, col_idx=1, x=4),
+        hl.Struct(row_idx=2, col_idx=0, x=1),
         hl.Struct(row_idx=2, col_idx=1, x=4),
-        hl.Struct(row_idx=3, col_idx=0, x=3),
-        hl.Struct(row_idx=3, col_idx=1, x=0),
+        hl.Struct(row_idx=3, col_idx=0, x=4),
+        hl.Struct(row_idx=3, col_idx=1, x=2),
         hl.Struct(row_idx=4, col_idx=0, x=4),
-        hl.Struct(row_idx=4, col_idx=1, x=3)
+        hl.Struct(row_idx=4, col_idx=1, x=4),
     ]
     actual = mt.entries().collect()
     assert expected == actual
@@ -84,7 +84,7 @@ def test_table_filter():
     ht = hl.utils.range_table(5)
     ht = ht.annotate(x = hl.rand_int32(5))
     ht = ht.filter(ht.x % 3 == 0)
-    expected = [hl.Struct(idx=2, x=3)]
+    expected = [hl.Struct(idx=1, x=3), hl.Struct(idx=3, x=3), hl.Struct(idx=4, x=3)]
     actual = ht.collect()
     assert expected == actual