$ git clone -n https://src.fedoraproject.org/rpms/mingw-c-ares.git /var/lib/mock/f45-build-18396-515/root/chroot_tmpdir/scmroot/mingw-c-ares
Cloning into '/var/lib/mock/f45-build-18396-515/root/chroot_tmpdir/scmroot/mingw-c-ares'...
$ git fetch origin 4ec790acd1bfadd36fd197c38294296469726a08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-c-ares
 * [new ref]         4ec790acd1bfadd36fd197c38294296469726a08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ec790a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild