$ git clone -n https://src.fedoraproject.org/rpms/msr-tools.git /var/lib/mock/f39-build-1661915-40666/root/chroot_tmpdir/scmroot/msr-tools
Cloning into '/var/lib/mock/f39-build-1661915-40666/root/chroot_tmpdir/scmroot/msr-tools'...
$ git fetch origin 721283a0eca85a003df0f658e540b66227a35b8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/msr-tools
 * [new ref]         721283a0eca85a003df0f658e540b66227a35b8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 721283a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild