$ git clone -n https://github.com/xcp-ng-rpms/ipxe-efi.git /var/lib/mock/v8.3-u-stormi1-5897-11043/root/chroot_tmpdir/scmroot/ipxe-efi
Cloning into '/var/lib/mock/v8.3-u-stormi1-5897-11043/root/chroot_tmpdir/scmroot/ipxe-efi'...
$ git reset --hard 784beaa67da5242c63294535ba9e532984ce5b1b
Downloading SOURCES/ipxe-efi-20180514gite7f67d5.tar.gz (3.8 MB)
HEAD is now at 784beaa Merge branch 'XS-8.3'