Merge pull request #946 from AlanZhang2002/ambiguous-git-reset

added separator after ref to remove git reset --soft ambiguity

main.go

@@ -1780,7 +1780,7 @@ func (git *repoSync) SyncRepo(ctx context.Context, refreshCreds func(context.Con
 		// Reset the repo (note: not the worktree - that happens later) to the new
 		// ref.  This makes subsequent fetches much less expensive.  It uses --soft
 		// so no files are checked out.
-		if _, _, err := git.Run(ctx, git.root, "reset", "--soft", remoteHash); err != nil {
+		if _, _, err := git.Run(ctx, git.root, "reset", "--soft", remoteHash, "--"); err != nil {
 			return false, "", err
 		}
 

test_e2e.sh

@@ -1491,6 +1491,40 @@ function e2e::sync_crash_no_worktree_cleanup_retry() {
     assert_file_eq "$ROOT/link/file" "${FUNCNAME[0]}"
 }
 
+##############################################
+# Test syncing if a file named for the SHA exists
+##############################################
+function e2e::sync_sha_shafile_exists() {
+    echo "${FUNCNAME[0]} 1" > "$REPO/file"
+    git -C "$REPO" commit -qam "${FUNCNAME[0]} 1"
+    SHA1=$(git -C "$REPO" rev-list -n1 HEAD)
+    echo "${FUNCNAME[0]} 2" > "$REPO/file"
+    git -C "$REPO" commit -qam "${FUNCNAME[0]} 2"
+    SHA2=$(git -C "$REPO" rev-list -n1 HEAD)
+
+    GIT_SYNC \
+        --one-time \
+        --repo="file://$REPO" \
+        --ref="$SHA1" \
+        --root="$ROOT" \
+        --link="link"
+    assert_link_exists "$ROOT/link"
+    assert_file_exists "$ROOT/link/file"
+    assert_file_eq "$ROOT/link/file" "${FUNCNAME[0]} 1"
+
+    touch "$ROOT/$SHA2"
+
+    GIT_SYNC \
+        --one-time \
+        --repo="file://$REPO" \
+        --ref="$SHA2" \
+        --root="$ROOT" \
+        --link="link"
+    assert_link_exists "$ROOT/link"
+    assert_file_exists "$ROOT/link/file"
+    assert_file_eq "$ROOT/link/file" "${FUNCNAME[0]} 2"
+}
+
 ##############################################
 # Test changing repos with storage intact
 ##############################################