$ git clone -n https://src.fedoraproject.org/rpms/xorg-x11-xbitmaps.git /var/lib/mock/f45-build-39025-731/root/chroot_tmpdir/scmroot/xorg-x11-xbitmaps
Cloning into '/var/lib/mock/f45-build-39025-731/root/chroot_tmpdir/scmroot/xorg-x11-xbitmaps'...
$ git fetch origin fafae008faddb72573713922d12cd2865878af20:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xorg-x11-xbitmaps
 * [new ref]         fafae008faddb72573713922d12cd2865878af20 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fafae00 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild