$ git clone -n https://src.fedoraproject.org/rpms/ghc-base16-bytestring.git /var/lib/mock/f42-build-877471-180226/root/chroot_tmpdir/scmroot/ghc-base16-bytestring
Cloning into '/var/lib/mock/f42-build-877471-180226/root/chroot_tmpdir/scmroot/ghc-base16-bytestring'...
$ git fetch origin e8f97fca1820cc838cc2c880bad85c042438e80a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-base16-bytestring
 * [new ref]         e8f97fca1820cc838cc2c880bad85c042438e80a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8f97fc Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild