src/create_hooks.rs: changes hook post-checkout

src/create_hooks.rs

@@ -119,7 +119,9 @@ pub fn create_hooks(compression: &str, mode: &str) {
     original_commit=${{arr[5]}} \n\
     target_commit=${{arr[7]}} \n\
     \n
+    if [ \"${{original_commit}}\" != \"${{target_commit}}\" ]; then
         git -c core.hooksPath=/dev/null co ${{original_commit}} && gblk pre-co && git -c core.hooksPath=/dev/null checkout ${{target_commit}} && gblk checkout --mode {}
+    fi
     ", mode);
     let post_co_cmd = post_co_cmd.as_str();
     let v = vec![post_commit_cmd, post_co_cmd];