$ git clone -n https://src.fedoraproject.org/rpms/perl-POE-Component-IRC.git /var/lib/mock/f45-build-25530-611/root/chroot_tmpdir/scmroot/perl-POE-Component-IRC
Cloning into '/var/lib/mock/f45-build-25530-611/root/chroot_tmpdir/scmroot/perl-POE-Component-IRC'...
$ git fetch origin 3b26686388c25e6497b7a8b9fe888b5cdd639918:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-POE-Component-IRC
 * [new ref]         3b26686388c25e6497b7a8b9fe888b5cdd639918 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3b26686 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild