$ git clone -n https://src.fedoraproject.org/rpms/arm-none-eabi-binutils-cs.git /var/lib/mock/f38-build-side-42-init-devel-755683-27676/root/chroot_tmpdir/scmroot/arm-none-eabi-binutils-cs
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-755683-27676/root/chroot_tmpdir/scmroot/arm-none-eabi-binutils-cs'...
$ git fetch origin 58c0ae4ce66844d41da44ff9a781f4729fcd12ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/arm-none-eabi-binutils-cs
 * [new ref]         58c0ae4ce66844d41da44ff9a781f4729fcd12ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58c0ae4 updated to 2.40