$ git clone -n https://github.com/xcp-ng-rpms/ipxe-efi.git /var/lib/mock/v8.3-base-3907-3843/root/chroot_tmpdir/scmroot/ipxe-efi
Cloning into '/var/lib/mock/v8.3-base-3907-3843/root/chroot_tmpdir/scmroot/ipxe-efi'...
$ git reset --hard a43fde5fd53725e07c15ee0e65aac0e3e55ad4a6
Downloading SOURCES/ipxe-efi-20180514gite7f67d5.tar.gz (3.8 MB)
HEAD is now at a43fde5 Merge branch 'XS-8.3'