$ git clone -n https://src.fedoraproject.org/rpms/perl-Mouse.git /var/lib/mock/f45-build-25225-610/root/chroot_tmpdir/scmroot/perl-Mouse
Cloning into '/var/lib/mock/f45-build-25225-610/root/chroot_tmpdir/scmroot/perl-Mouse'...
$ git fetch origin 98e13b49a3d569260e1da3312631827f33b7c353:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Mouse
 * [new ref]         98e13b49a3d569260e1da3312631827f33b7c353 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98e13b4 Perl 5.44 re-rebuild of bootstrapped packages