don't ever allow SHA1 collisions to exist by fetching a pack

diff --git a/templates/hooks--update b/templates/hooks--update
index 5b82b68e93980924befa9ecc99e099e77da27b5f..8f6c4fea2429cef0da4748f8871ceaed94b432cc 100644 (file)
--- a/templates/hooks--update
+++ b/templates/hooks--update
@@ -210,7 +210,7 @@ case "$refname_type" in
                fi
 
                # If this tag succeeds another, then show which tag it replaces
-               prevtag=$(git describe $newrev^ 2>/dev/null | sed 's/-g.*//')
+               prevtag=$(git describe --abbrev=0 $newrev^ 2>/dev/null)
                if [ -n "$prevtag" ]; then
                        echo "  replaces  $prevtag"
                fi