$ git clone -n https://src.fedoraproject.org/rpms/mingw-poppler.git /var/lib/mock/f45-build-18654-525/root/chroot_tmpdir/scmroot/mingw-poppler
Cloning into '/var/lib/mock/f45-build-18654-525/root/chroot_tmpdir/scmroot/mingw-poppler'...
$ git fetch origin 2030b80c7eae22456022608d84d50ded7ffae493:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-poppler
 * [new ref]         2030b80c7eae22456022608d84d50ded7ffae493 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2030b80 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild