$ git clone -n https://src.fedoraproject.org/rpms/emacs-irsim-mode.git /var/lib/mock/f45-build-8093-376/root/chroot_tmpdir/scmroot/emacs-irsim-mode
Cloning into '/var/lib/mock/f45-build-8093-376/root/chroot_tmpdir/scmroot/emacs-irsim-mode'...
$ git fetch origin 9a0015c4d5b55ee43f6f61c934789535a308c7be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-irsim-mode
 * [new ref]         9a0015c4d5b55ee43f6f61c934789535a308c7be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a0015c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild