$ git clone -n https://src.fedoraproject.org/rpms/mingw-libjpeg-turbo.git /var/lib/mock/f45-build-18556-521/root/chroot_tmpdir/scmroot/mingw-libjpeg-turbo
Cloning into '/var/lib/mock/f45-build-18556-521/root/chroot_tmpdir/scmroot/mingw-libjpeg-turbo'...
$ git fetch origin 56fe2eabf0d7872eece2d9c260dd66037a1d227a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-libjpeg-turbo
 * [new ref]         56fe2eabf0d7872eece2d9c260dd66037a1d227a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56fe2ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild