test: less fragile integration suite [ci skip]

See coop-cloud/organising#584
See coop-cloud/organising#595

tests/integration/app_new.bats

@@ -13,14 +13,13 @@ teardown_file(){
 
 setup(){
   load "$PWD/tests/integration/helpers/common"
-  load "$PWD/tests/integration/helpers/git"
   _common_setup
   _fetch_recipe
 }
 
 teardown(){
-  load "$PWD/tests/integration/helpers/common"
   _rm_app
+  _reset_recipe
 }
 
 @test "autocomplete" {
@@ -110,7 +109,6 @@ teardown(){
 }
 
 @test "ensure recipe up to date if no --offline" {
-  _reset_recipe
   wantHash=$(_get_n_hash 3)
 
   run git -C "$ABRA_DIR/recipes/$TEST_RECIPE" reset --hard HEAD~3
@@ -126,12 +124,9 @@ teardown(){
   assert_exists "$ABRA_DIR/servers/$TEST_SERVER/$TEST_APP_DOMAIN.env"
 
   assert_equal $(_get_head_hash) $(_get_current_hash)
-
-  _reset_recipe
 }
 
 @test "ensure recipe not up to date if --offline" {
-  _reset_recipe
   wantHash=$(_get_n_hash 3)
 
   run git -C "$ABRA_DIR/recipes/$TEST_RECIPE" reset --hard HEAD~3
@@ -150,8 +145,6 @@ teardown(){
   assert_exists "$ABRA_DIR/servers/$TEST_SERVER/$TEST_APP_DOMAIN.env"
 
   assert_equal $(_get_current_hash) "$wantHash"
-
-  _reset_recipe
 }
 
 # bats test_tags=slow