$ git clone -n https://src.fedoraproject.org/rpms/rust-blsctl.git /var/lib/mock/f45-build-35474-695/root/chroot_tmpdir/scmroot/rust-blsctl
Cloning into '/var/lib/mock/f45-build-35474-695/root/chroot_tmpdir/scmroot/rust-blsctl'...
$ git fetch origin d879b0f746e4e1732edf21f0e6c42fd771bbe7c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-blsctl
 * [new ref]         d879b0f746e4e1732edf21f0e6c42fd771bbe7c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d879b0f Bump serial_test dev-dependency from v0.5 to v3