$ git clone -n https://github.com/xcp-ng-rpms/r8152-module-alt.git /var/lib/mock/v8.3-incoming-8027-23264/root/chroot_tmpdir/scmroot/r8152-module-alt
Cloning into '/var/lib/mock/v8.3-incoming-8027-23264/root/chroot_tmpdir/scmroot/r8152-module-alt'...
$ git reset --hard 49d4db2e92bad01320e4e97654ae2c2dd90f6b20
fatal: Could not parse object '49d4db2e92bad01320e4e97654ae2c2dd90f6b20'.