$ git clone -n https://src.fedoraproject.org/rpms/mingw-opencv.git /var/lib/mock/f45-build-18611-524/root/chroot_tmpdir/scmroot/mingw-opencv
Cloning into '/var/lib/mock/f45-build-18611-524/root/chroot_tmpdir/scmroot/mingw-opencv'...
$ git fetch origin 114b227f70abb993467ce707b09220aace53460d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-opencv
 * [new ref]         114b227f70abb993467ce707b09220aace53460d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 114b227 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild