fix incorrect changelog if autoregen is run

1 files changed, 2 insertions, 1 deletions

diff --git a/build-snapshots b/build-snapshots
index 5ecd327..756dd50 100755
--- a/build-snapshots
+++ b/build-snapshots
@@ -10,6 +10,7 @@ repo_update() {
     git checkout upstream
     git merge upstream/master
     git checkout master
+    git tag -f pre-merge master
     git merge upstream
 }
 
@@ -21,7 +22,7 @@ append_git_changelog() {
 version_set() {
     local upstream_version="$(git tag|grep ^v|tr -d v|sort -t . -n|tail -n 1)"
     dch --newversion "${upstream_version}-git$(date +%Y%m%d)-1" --preserve --distribution testing "Nightly snapshot package"
-    append_git_changelog master^..master
+    append_git_changelog pre-merge..master
     git commit -m "Add changelog entry for nightly snapshot build" debian/changelog
 }