builtin-blame: set up the work_tree before the first file access

diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index 4e93aaab02e7b84b4bcf6ac70515e6cf52f0dabc..b6a54867b491ba67e4813fd492a1a8cc16959a21 100755 (executable)
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -38,7 +38,7 @@ cd "$base_dir"
 
 test_expect_success 'pulling from reference' \
 'cd C &&
-git pull ../B'
+git pull ../B master'
 
 cd "$base_dir"
 
@@ -61,7 +61,7 @@ test_expect_success 'existence of info/alternates' \
 cd "$base_dir"
 
 test_expect_success 'pulling from reference' \
-'cd D && git pull ../B'
+'cd D && git pull ../B master'
 
 cd "$base_dir"