$ git clone -n https://src.fedoraproject.org/rpms/gnome-shell-extension-forge.git /var/lib/mock/f45-build-11523-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-forge
Cloning into '/var/lib/mock/f45-build-11523-432/root/chroot_tmpdir/scmroot/gnome-shell-extension-forge'...
$ git fetch origin 334365438bb81c3800bcc6c97663e15990cd1f01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gnome-shell-extension-forge
 * [new ref]         334365438bb81c3800bcc6c97663e15990cd1f01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3343654 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild