$ git clone -n https://src.fedoraproject.org/rpms/rust-alacritty.git /var/lib/mock/f45-build-40020-767/root/chroot_tmpdir/scmroot/rust-alacritty
Cloning into '/var/lib/mock/f45-build-40020-767/root/chroot_tmpdir/scmroot/rust-alacritty'...
$ git fetch origin 264c0ed316dd54f3e6e975a41743efa72be3a233:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-alacritty
 * [new ref]         264c0ed316dd54f3e6e975a41743efa72be3a233 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 264c0ed Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild