$ git clone -n https://src.fedoraproject.org/rpms/vrms-rpm.git /var/lib/mock/f45-build-38176-722/root/chroot_tmpdir/scmroot/vrms-rpm
Cloning into '/var/lib/mock/f45-build-38176-722/root/chroot_tmpdir/scmroot/vrms-rpm'...
$ git fetch origin 120e377f8b250ba3c51866e33729bcfea1b05fb7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vrms-rpm
 * [new ref]         120e377f8b250ba3c51866e33729bcfea1b05fb7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 120e377 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild