git-subtree error example

echo ""
echo "-- Create the "library" repository."
echo ""
mkdir repoLib
cd repoLib
git init
echo test > test.txt
git add .
git commit -m "Adding test.txt"
cd ..

echo ""
echo "-- Create a bare repository that we can push into (emulating what we're doing in gitolite)."
echo ""
mkdir repoMain_Server
cd repoMain_Server
git init --bare
cd ..

echo ""
echo "-- Close the server repository."
echo ""
git clone repoMain_Server repoMain
cd repoMain

echo ""
echo "-- Write a file and push to the server repo."
echo ""
echo test > test2.txt
git add .
git commit -m "Adding test2.txt"
git push origin master

echo ""
echo "-- subtree add the library repository and push the results to the server.  If --squash is removed everything will work."
echo ""
git subtree add -P Subtree/librepoLib --squash ../repoLib master
git push
cd ..

echo ""
echo "-- clone the main repo and attempt to split out Subtree/librepoLib, should succeed"
echo ""
git clone repoMain repoMainClone
cd repoMainClone
git subtree split -P Subtree/librepoLib -b libABranch
cd ..

echo ""
echo "-- pull the main repo and attempt to split out Subtree/librepoLib, should error (fatal: bad object ...)"
echo ""
mkdir repoMainPull
cd repoMainPull
git init
git pull ../repoMain
git subtree split -P Subtree/librepoLib -b libABranch
cd ..

echo ""
echo "-- clone the server repository as if we were a separate user on a separate computer."
echo ""
git clone repoMain_Server repo_working
cd repo_working

echo ""
echo "-- attempt to split out Subtree/librepoLib, should error (fatal: bad object ...)"
echo ""
git subtree split -P Subtree/librepoLib -b libABranch