[...]

If you want to create a new branch to retain commits you create, you may
do so (now or later) by using -b with the checkout command again. Example:
  git checkout -b new_branch_name
HEAD is now at a76a41f... - release 2
fatal: HEAD does not point to a branch
Available branches: AC-branch master
Searching for tag auto/ti/lzop-1.03-2...
Searching for tag auto/ti/lzop-1_03-2...
--2018-03-14 16:58:13--  http://distfiles.pld-linux.org/distfiles/by-md5/0/0/006c5e27fb78cdd14a628fdfa5aa1905/lzop-1.03.tar.gz
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 370775 (362K) [application/x-gzip]
Saving to: 'lzop-1.03.tar.gz'
     0K .......... .......... .......... .......... .......... 13% 1.22M 0s
    50K .......... .......... .......... .......... .......... 27% 2.41M 0s
   100K .......... .......... .......... .......... .......... 41% 60.6M 0s
   150K .......... .......... .......... .......... .......... 55%  155M 0s
   200K .......... .......... .......... .......... .......... 69% 2.42M 0s
   250K .......... .......... .......... .......... .......... 82% 87.3M 0s
   300K .......... .......... .......... .......... .......... 96%  149M 0s
   350K .......... ..                                         100%  196M=0.08s
2018-03-14 16:58:13 (4.28 MB/s) - 'lzop-1.03.tar.gz' saved [370775/370775]
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/lzop-1.03-2.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at a76a41f... - release 2
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/lzop-1.03-2
On detached HEAD. Use -r BRANCHNAME to override
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.50453
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf lzop-1.03
Begin-TLD-Builder-Info
Build-Time: user:0.75s sys:0.23s real:2.04s (faults io:0 non-io:78747)
Files queued for ftp:
    375282 lzop-1.03-2.src.rpm
       181 lzop-1.03-2.src.rpm.uploadinfo
End-TLD-Builder-Info