$ git clone -n https://src.fedoraproject.org/rpms/perl-POE-Component-IRC.git /var/lib/mock/f43-build-60958163-6586765/root/chroot_tmpdir/scmroot/perl-POE-Component-IRC
Cloning into '/var/lib/mock/f43-build-60958163-6586765/root/chroot_tmpdir/scmroot/perl-POE-Component-IRC'...
$ git fetch origin 3e93c4400d1cb2bab89def86edf449fbdbaf208e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-POE-Component-IRC
 * [new ref]         3e93c4400d1cb2bab89def86edf449fbdbaf208e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e93c44 6.95 bump