$ git clone -n https://src.fedoraproject.org/rpms/whois.git /var/lib/mock/f45-build-38364-723/root/chroot_tmpdir/scmroot/whois
Cloning into '/var/lib/mock/f45-build-38364-723/root/chroot_tmpdir/scmroot/whois'...
$ git fetch origin 9a0fcf825fc52b778e6ac9eeb3e26d0e60d862cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/whois
 * [new ref]         9a0fcf825fc52b778e6ac9eeb3e26d0e60d862cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a0fcf8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild