$ git clone -n https://src.fedoraproject.org/rpms/mingw-gdk-pixbuf.git /var/lib/mock/f45-build-18450-516/root/chroot_tmpdir/scmroot/mingw-gdk-pixbuf
Cloning into '/var/lib/mock/f45-build-18450-516/root/chroot_tmpdir/scmroot/mingw-gdk-pixbuf'...
$ git fetch origin 9368a627735a90177bfcc7783f4b323b930a3504:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-gdk-pixbuf
 * [new ref]         9368a627735a90177bfcc7783f4b323b930a3504 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9368a62 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild