$ git clone -n https://src.fedoraproject.org/rpms/rust-cpp_demangle.git /var/lib/mock/f40-build-737244-13289/root/chroot_tmpdir/scmroot/rust-cpp_demangle
Cloning into '/var/lib/mock/f40-build-737244-13289/root/chroot_tmpdir/scmroot/rust-cpp_demangle'...
$ git fetch origin 35f7e44bdc60ce3dc9cee522fedb7cbc4443a60e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cpp_demangle
 * [new ref]         35f7e44bdc60ce3dc9cee522fedb7cbc4443a60e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 35f7e44 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild