$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Mock-LWP.git /var/lib/mock/f41-build-908047-17036/root/chroot_tmpdir/scmroot/perl-Test-Mock-LWP
Cloning into '/var/lib/mock/f41-build-908047-17036/root/chroot_tmpdir/scmroot/perl-Test-Mock-LWP'...
$ git fetch origin 42f7771bd66845bc708197ce2f3d027225b50b44:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Mock-LWP
 * [new ref]         42f7771bd66845bc708197ce2f3d027225b50b44 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42f7771 Eliminate use of obsolete %patchN syntax (#2283636)