$ git clone -n https://src.fedoraproject.org/rpms/mingw-imath.git /var/lib/mock/f45-build-18497-519/root/chroot_tmpdir/scmroot/mingw-imath
Cloning into '/var/lib/mock/f45-build-18497-519/root/chroot_tmpdir/scmroot/mingw-imath'...
$ git fetch origin 0adff700b931301008158fd5c77009f453ad0b2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-imath
 * [new ref]         0adff700b931301008158fd5c77009f453ad0b2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0adff70 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild