Better cleanup and revert.

Bug: 243966946
Test: run locally
Change-Id: I09f7cb19bb7f97d807a75189bf75e7c2fd25edee
diff --git a/finalize-cleanup.sh b/finalize-cleanup.sh
index efa2707..e3bca63 100755
--- a/finalize-cleanup.sh
+++ b/finalize-cleanup.sh
@@ -9,7 +9,7 @@
     repo selfupdate
 
     repo forall -c '\
-        git checkout . ; git clean -fdx ;\
+        git checkout . ; git revert --abort ; git clean -fdx ;\
         git checkout @ ; git b fina-step1 -D ; git reset --hard; \
         repo start fina-step1 ; git checkout @ ; git b fina-step1 -D ;'
 }